31888168

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 67914000

約数和(自身を除く): 36025832

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 97, 104, 109, 116, 194, 218, 232, 377, 388, 436, 754, 776, 872, 1261, 1417, 1508, 2522, 2813, 2834, 3016, 3161, 5044, 5626, 5668, 6322, 10088, 10573, 11252, 11336, 12644, 21146, 22504, 25288, 36569, 41093, 42292, 73138, 82186, 84584, 137449, 146276, 164372, 274898, 292552, 306617, 328744, 549796, 613234, 1099592, 1226468, 2452936, 3986021, 7972042, 15944084, 31888168]

約数ペア:

[(1, 31888168), (2, 15944084), (4, 7972042), (8, 3986021), (13, 2452936), (26, 1226468), (29, 1099592), (52, 613234), (58, 549796), (97, 328744), (104, 306617), (109, 292552), (116, 274898), (194, 164372), (218, 146276), (232, 137449), (377, 84584), (388, 82186), (436, 73138), (754, 42292), (776, 41093), (872, 36569), (1261, 25288), (1417, 22504), (1508, 21146), (2522, 12644), (2813, 11336), (2834, 11252), (3016, 10573), (3161, 10088), (5044, 6322), (5626, 5668)]