19701129872

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1\times {\mathrm{1777}}^1$

素因数の和:2496

約数の個数: 80

約数和(自身を含む): 40764390912

約数和(自身を除く): 21063261040

約数列:

[1, 2, 4, 8, 16, 23, 46, 47, 92, 94, 184, 188, 368, 376, 641, 752, 1081, 1282, 1777, 2162, 2564, 3554, 4324, 5128, 7108, 8648, 10256, 14216, 14743, 17296, 28432, 29486, 30127, 40871, 58972, 60254, 81742, 83519, 117944, 120508, 163484, 167038, 235888, 241016, 326968, 334076, 482032, 653936, 668152, 692921, 1139057, 1336304, 1385842, 1920937, 2278114, 2771684, 3841874, 4556228, 5543368, 7683748, 9112456, 11086736, 15367496, 18224912, 26198311, 30734992, 52396622, 53535679, 104793244, 107071358, 209586488, 214142716, 419172976, 428285432, 856570864, 1231320617, 2462641234, 4925282468, 9850564936, 19701129872]

約数ペア:

[(1, 19701129872), (2, 9850564936), (4, 4925282468), (8, 2462641234), (16, 1231320617), (23, 856570864), (46, 428285432), (47, 419172976), (92, 214142716), (94, 209586488), (184, 107071358), (188, 104793244), (368, 53535679), (376, 52396622), (641, 30734992), (752, 26198311), (1081, 18224912), (1282, 15367496), (1777, 11086736), (2162, 9112456), (2564, 7683748), (3554, 5543368), (4324, 4556228), (5128, 3841874), (7108, 2771684), (8648, 2278114), (10256, 1920937), (14216, 1385842), (14743, 1336304), (17296, 1139057), (28432, 692921), (29486, 668152), (30127, 653936), (40871, 482032), (58972, 334076), (60254, 326968), (81742, 241016), (83519, 235888), (117944, 167038), (120508, 163484)]