78221556

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:115

約数の個数: 216

約数和(自身を含む): 260245440

約数和(自身を除く): 182023884

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 19, 21, 28, 31, 34, 36, 38, 42, 51, 57, 62, 63, 68, 76, 84, 93, 102, 114, 119, 124, 126, 133, 153, 171, 186, 204, 217, 228, 238, 252, 266, 279, 306, 323, 342, 357, 372, 399, 434, 476, 527, 532, 558, 589, 612, 646, 651, 684, 714, 798, 868, 961, 969, 1054, 1071, 1116, 1178, 1197, 1292, 1302, 1428, 1581, 1596, 1767, 1922, 1938, 1953, 2108, 2142, 2261, 2356, 2394, 2604, 2883, 2907, 3162, 3534, 3689, 3844, 3876, 3906, 4123, 4284, 4522, 4743, 4788, 5301, 5766, 5814, 6324, 6727, 6783, 7068, 7378, 7812, 8246, 8649, 9044, 9486, 10013, 10602, 11067, 11532, 11628, 12369, 13454, 13566, 14756, 16337, 16492, 17298, 18259, 18972, 20026, 20181, 20349, 21204, 22134, 24738, 26908, 27132, 30039, 32674, 33201, 34596, 36518, 37107, 40052, 40362, 40698, 44268, 49011, 49476, 54777, 60078, 60543, 65348, 66402, 70091, 73036, 74214, 80724, 81396, 90117, 98022, 109554, 114359, 120156, 121086, 127813, 132804, 140182, 147033, 148428, 164331, 180234, 196044, 210273, 219108, 228718, 242172, 255626, 280364, 294066, 310403, 328662, 343077, 360468, 383439, 420546, 457436, 511252, 588132, 620806, 630819, 657324, 686154, 766878, 841092, 931209, 1029231, 1150317, 1241612, 1261638, 1372308, 1533756, 1862418, 2058462, 2172821, 2300634, 2523276, 2793627, 3724836, 4116924, 4345642, 4601268, 5587254, 6518463, 8691284, 11174508, 13036926, 19555389, 26073852, 39110778, 78221556]

約数ペア:

[(1, 78221556), (2, 39110778), (3, 26073852), (4, 19555389), (6, 13036926), (7, 11174508), (9, 8691284), (12, 6518463), (14, 5587254), (17, 4601268), (18, 4345642), (19, 4116924), (21, 3724836), (28, 2793627), (31, 2523276), (34, 2300634), (36, 2172821), (38, 2058462), (42, 1862418), (51, 1533756), (57, 1372308), (62, 1261638), (63, 1241612), (68, 1150317), (76, 1029231), (84, 931209), (93, 841092), (102, 766878), (114, 686154), (119, 657324), (124, 630819), (126, 620806), (133, 588132), (153, 511252), (171, 457436), (186, 420546), (204, 383439), (217, 360468), (228, 343077), (238, 328662), (252, 310403), (266, 294066), (279, 280364), (306, 255626), (323, 242172), (342, 228718), (357, 219108), (372, 210273), (399, 196044), (434, 180234), (476, 164331), (527, 148428), (532, 147033), (558, 140182), (589, 132804), (612, 127813), (646, 121086), (651, 120156), (684, 114359), (714, 109554), (798, 98022), (868, 90117), (961, 81396), (969, 80724), (1054, 74214), (1071, 73036), (1116, 70091), (1178, 66402), (1197, 65348), (1292, 60543), (1302, 60078), (1428, 54777), (1581, 49476), (1596, 49011), (1767, 44268), (1922, 40698), (1938, 40362), (1953, 40052), (2108, 37107), (2142, 36518), (2261, 34596), (2356, 33201), (2394, 32674), (2604, 30039), (2883, 27132), (2907, 26908), (3162, 24738), (3534, 22134), (3689, 21204), (3844, 20349), (3876, 20181), (3906, 20026), (4123, 18972), (4284, 18259), (4522, 17298), (4743, 16492), (4788, 16337), (5301, 14756), (5766, 13566), (5814, 13454), (6324, 12369), (6727, 11628), (6783, 11532), (7068, 11067), (7378, 10602), (7812, 10013), (8246, 9486), (8649, 9044)]