397204990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:362

約数の個数: 128

約数和(自身を含む): 926650368

約数和(自身を除く): 529445378

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 37, 47, 65, 70, 74, 91, 94, 130, 182, 185, 235, 251, 259, 329, 370, 455, 470, 481, 502, 518, 611, 658, 910, 962, 1222, 1255, 1295, 1645, 1739, 1757, 2405, 2510, 2590, 3055, 3263, 3290, 3367, 3478, 3514, 4277, 4810, 6110, 6526, 6734, 8554, 8695, 8785, 9287, 11797, 12173, 16315, 16835, 17390, 17570, 18574, 21385, 22607, 22841, 23594, 24346, 32630, 33670, 42770, 45214, 45682, 46435, 58985, 60865, 65009, 82579, 92870, 113035, 114205, 117970, 120731, 121730, 130018, 153361, 158249, 165158, 226070, 228410, 241462, 306722, 316498, 325045, 412895, 436489, 603655, 650090, 766805, 791245, 825790, 845117, 872978, 1073527, 1207310, 1533610, 1582490, 1690234, 2147054, 2182445, 3055423, 4225585, 4364890, 5367635, 5674357, 6110846, 8451170, 10735270, 11348714, 15277115, 28371785, 30554230, 39720499, 56743570, 79440998, 198602495, 397204990]

約数ペア:

[(1, 397204990), (2, 198602495), (5, 79440998), (7, 56743570), (10, 39720499), (13, 30554230), (14, 28371785), (26, 15277115), (35, 11348714), (37, 10735270), (47, 8451170), (65, 6110846), (70, 5674357), (74, 5367635), (91, 4364890), (94, 4225585), (130, 3055423), (182, 2182445), (185, 2147054), (235, 1690234), (251, 1582490), (259, 1533610), (329, 1207310), (370, 1073527), (455, 872978), (470, 845117), (481, 825790), (502, 791245), (518, 766805), (611, 650090), (658, 603655), (910, 436489), (962, 412895), (1222, 325045), (1255, 316498), (1295, 306722), (1645, 241462), (1739, 228410), (1757, 226070), (2405, 165158), (2510, 158249), (2590, 153361), (3055, 130018), (3263, 121730), (3290, 120731), (3367, 117970), (3478, 114205), (3514, 113035), (4277, 92870), (4810, 82579), (6110, 65009), (6526, 60865), (6734, 58985), (8554, 46435), (8695, 45682), (8785, 45214), (9287, 42770), (11797, 33670), (12173, 32630), (16315, 24346), (16835, 23594), (17390, 22841), (17570, 22607), (18574, 21385)]