638685684

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:411

約数の個数: 288

約数和(自身を含む): 2165596160

約数和(自身を除く): 1526910476

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 19, 21, 26, 28, 31, 36, 38, 39, 42, 52, 57, 62, 63, 76, 78, 84, 91, 93, 114, 117, 124, 126, 133, 156, 171, 182, 186, 217, 228, 234, 247, 252, 266, 273, 279, 331, 342, 364, 372, 399, 403, 434, 468, 494, 532, 546, 558, 589, 651, 662, 684, 741, 798, 806, 819, 868, 988, 993, 1092, 1116, 1178, 1197, 1209, 1302, 1324, 1482, 1596, 1612, 1638, 1729, 1767, 1953, 1986, 2223, 2317, 2356, 2394, 2418, 2604, 2821, 2964, 2979, 3276, 3458, 3534, 3627, 3906, 3972, 4123, 4303, 4446, 4634, 4788, 4836, 5187, 5301, 5642, 5958, 6289, 6916, 6951, 7068, 7254, 7657, 7812, 8246, 8463, 8606, 8892, 9268, 10261, 10374, 10602, 11284, 11916, 12369, 12578, 12909, 13902, 14508, 15314, 15561, 16492, 16926, 17212, 18867, 20522, 20748, 20853, 21204, 22971, 24738, 25156, 25389, 25818, 27804, 30121, 30628, 30783, 31122, 33852, 37107, 37734, 38727, 41044, 41706, 44023, 45942, 49476, 50778, 51636, 53599, 56601, 60242, 61566, 62244, 68913, 71827, 74214, 75468, 77454, 81757, 83412, 88046, 90363, 91884, 92349, 101556, 107198, 113202, 120484, 123132, 132069, 133393, 137826, 143654, 148428, 154908, 160797, 163514, 176092, 180726, 184698, 194959, 214396, 215481, 226404, 245271, 264138, 266786, 271089, 275652, 287308, 321594, 327028, 361452, 369396, 389918, 396207, 400179, 430962, 482391, 490542, 528276, 533572, 542178, 572299, 584877, 643188, 646443, 735813, 779836, 792414, 800358, 861924, 933751, 964782, 981084, 1084356, 1144598, 1169754, 1200537, 1292886, 1364713, 1471626, 1584828, 1600716, 1716897, 1754631, 1867502, 1929564, 2289196, 2339508, 2401074, 2534467, 2585772, 2729426, 2801253, 2943252, 3433794, 3509262, 3735004, 4094139, 4802148, 5068934, 5150691, 5458852, 5602506, 6867588, 7018524, 7603401, 8188278, 8403759, 10137868, 10301382, 11205012, 12282417, 15206802, 16376556, 16807518, 17741269, 20602764, 22810203, 24564834, 30413604, 33615036, 35482538, 45620406, 49129668, 53223807, 70965076, 91240812, 106447614, 159671421, 212895228, 319342842, 638685684]

約数ペア:

[(1, 638685684), (2, 319342842), (3, 212895228), (4, 159671421), (6, 106447614), (7, 91240812), (9, 70965076), (12, 53223807), (13, 49129668), (14, 45620406), (18, 35482538), (19, 33615036), (21, 30413604), (26, 24564834), (28, 22810203), (31, 20602764), (36, 17741269), (38, 16807518), (39, 16376556), (42, 15206802), (52, 12282417), (57, 11205012), (62, 10301382), (63, 10137868), (76, 8403759), (78, 8188278), (84, 7603401), (91, 7018524), (93, 6867588), (114, 5602506), (117, 5458852), (124, 5150691), (126, 5068934), (133, 4802148), (156, 4094139), (171, 3735004), (182, 3509262), (186, 3433794), (217, 2943252), (228, 2801253), (234, 2729426), (247, 2585772), (252, 2534467), (266, 2401074), (273, 2339508), (279, 2289196), (331, 1929564), (342, 1867502), (364, 1754631), (372, 1716897), (399, 1600716), (403, 1584828), (434, 1471626), (468, 1364713), (494, 1292886), (532, 1200537), (546, 1169754), (558, 1144598), (589, 1084356), (651, 981084), (662, 964782), (684, 933751), (741, 861924), (798, 800358), (806, 792414), (819, 779836), (868, 735813), (988, 646443), (993, 643188), (1092, 584877), (1116, 572299), (1178, 542178), (1197, 533572), (1209, 528276), (1302, 490542), (1324, 482391), (1482, 430962), (1596, 400179), (1612, 396207), (1638, 389918), (1729, 369396), (1767, 361452), (1953, 327028), (1986, 321594), (2223, 287308), (2317, 275652), (2356, 271089), (2394, 266786), (2418, 264138), (2604, 245271), (2821, 226404), (2964, 215481), (2979, 214396), (3276, 194959), (3458, 184698), (3534, 180726), (3627, 176092), (3906, 163514), (3972, 160797), (4123, 154908), (4303, 148428), (4446, 143654), (4634, 137826), (4788, 133393), (4836, 132069), (5187, 123132), (5301, 120484), (5642, 113202), (5958, 107198), (6289, 101556), (6916, 92349), (6951, 91884), (7068, 90363), (7254, 88046), (7657, 83412), (7812, 81757), (8246, 77454), (8463, 75468), (8606, 74214), (8892, 71827), (9268, 68913), (10261, 62244), (10374, 61566), (10602, 60242), (11284, 56601), (11916, 53599), (12369, 51636), (12578, 50778), (12909, 49476), (13902, 45942), (14508, 44023), (15314, 41706), (15561, 41044), (16492, 38727), (16926, 37734), (17212, 37107), (18867, 33852), (20522, 31122), (20748, 30783), (20853, 30628), (21204, 30121), (22971, 27804), (24738, 25818), (25156, 25389)]