278821998

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:112

約数の個数: 288

約数和(自身を含む): 858224640

約数和(自身を除く): 579402642

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 17, 18, 19, 21, 26, 31, 34, 38, 39, 42, 51, 57, 62, 63, 78, 91, 93, 102, 114, 117, 119, 126, 133, 153, 171, 182, 186, 217, 221, 234, 238, 247, 266, 273, 279, 289, 306, 323, 342, 357, 399, 403, 434, 442, 494, 527, 546, 558, 578, 589, 646, 651, 663, 714, 741, 798, 806, 819, 867, 969, 1054, 1071, 1178, 1197, 1209, 1302, 1326, 1482, 1547, 1581, 1638, 1729, 1734, 1767, 1938, 1953, 1989, 2023, 2142, 2223, 2261, 2394, 2418, 2601, 2821, 2907, 3094, 3162, 3458, 3534, 3627, 3689, 3757, 3906, 3978, 4046, 4123, 4199, 4446, 4522, 4641, 4743, 5187, 5202, 5301, 5491, 5642, 5814, 6069, 6783, 6851, 7254, 7378, 7514, 7657, 8246, 8398, 8463, 8959, 9282, 9486, 10013, 10374, 10602, 10982, 11067, 11271, 12138, 12369, 12597, 13566, 13702, 13923, 15314, 15561, 16473, 16926, 17918, 18207, 20026, 20349, 20553, 22134, 22542, 22971, 24738, 25194, 25389, 26299, 26877, 27846, 29393, 30039, 31122, 32946, 33201, 33813, 36414, 37107, 37791, 38437, 40698, 41106, 45942, 47957, 49419, 50778, 52598, 53599, 53754, 58786, 60078, 61659, 62713, 66402, 67626, 68913, 70091, 71383, 74214, 75582, 76874, 78897, 80631, 88179, 90117, 95914, 98838, 107198, 115311, 116467, 123318, 125426, 130169, 137826, 140182, 142766, 143871, 157794, 160797, 161262, 170221, 176358, 180234, 188139, 210273, 214149, 230622, 232934, 236691, 260338, 264537, 287742, 321594, 340442, 345933, 349401, 376278, 390507, 420546, 428298, 431613, 473382, 482391, 499681, 510663, 529074, 564417, 630819, 642447, 691866, 698802, 781014, 815269, 863226, 911183, 964782, 999362, 1021326, 1048203, 1128834, 1171521, 1191547, 1261638, 1284894, 1499043, 1531989, 1630538, 1822366, 2096406, 2212873, 2343042, 2383094, 2445807, 2733549, 2998086, 3063978, 3574641, 4425746, 4497129, 4891614, 5467098, 6638619, 7149282, 7337421, 8200647, 8994258, 10723923, 13277238, 14674842, 15490111, 16401294, 19915857, 21447846, 30980222, 39831714, 46470333, 92940666, 139410999, 278821998]

約数ペア:

[(1, 278821998), (2, 139410999), (3, 92940666), (6, 46470333), (7, 39831714), (9, 30980222), (13, 21447846), (14, 19915857), (17, 16401294), (18, 15490111), (19, 14674842), (21, 13277238), (26, 10723923), (31, 8994258), (34, 8200647), (38, 7337421), (39, 7149282), (42, 6638619), (51, 5467098), (57, 4891614), (62, 4497129), (63, 4425746), (78, 3574641), (91, 3063978), (93, 2998086), (102, 2733549), (114, 2445807), (117, 2383094), (119, 2343042), (126, 2212873), (133, 2096406), (153, 1822366), (171, 1630538), (182, 1531989), (186, 1499043), (217, 1284894), (221, 1261638), (234, 1191547), (238, 1171521), (247, 1128834), (266, 1048203), (273, 1021326), (279, 999362), (289, 964782), (306, 911183), (323, 863226), (342, 815269), (357, 781014), (399, 698802), (403, 691866), (434, 642447), (442, 630819), (494, 564417), (527, 529074), (546, 510663), (558, 499681), (578, 482391), (589, 473382), (646, 431613), (651, 428298), (663, 420546), (714, 390507), (741, 376278), (798, 349401), (806, 345933), (819, 340442), (867, 321594), (969, 287742), (1054, 264537), (1071, 260338), (1178, 236691), (1197, 232934), (1209, 230622), (1302, 214149), (1326, 210273), (1482, 188139), (1547, 180234), (1581, 176358), (1638, 170221), (1729, 161262), (1734, 160797), (1767, 157794), (1938, 143871), (1953, 142766), (1989, 140182), (2023, 137826), (2142, 130169), (2223, 125426), (2261, 123318), (2394, 116467), (2418, 115311), (2601, 107198), (2821, 98838), (2907, 95914), (3094, 90117), (3162, 88179), (3458, 80631), (3534, 78897), (3627, 76874), (3689, 75582), (3757, 74214), (3906, 71383), (3978, 70091), (4046, 68913), (4123, 67626), (4199, 66402), (4446, 62713), (4522, 61659), (4641, 60078), (4743, 58786), (5187, 53754), (5202, 53599), (5301, 52598), (5491, 50778), (5642, 49419), (5814, 47957), (6069, 45942), (6783, 41106), (6851, 40698), (7254, 38437), (7378, 37791), (7514, 37107), (7657, 36414), (8246, 33813), (8398, 33201), (8463, 32946), (8959, 31122), (9282, 30039), (9486, 29393), (10013, 27846), (10374, 26877), (10602, 26299), (10982, 25389), (11067, 25194), (11271, 24738), (12138, 22971), (12369, 22542), (12597, 22134), (13566, 20553), (13702, 20349), (13923, 20026), (15314, 18207), (15561, 17918), (16473, 16926)]