64233640

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{6719}}^1$

素因数の和:6969

約数の個数: 32

約数和(自身を含む): 145152000

約数和(自身を除く): 80918360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 6719, 9560, 13438, 26876, 33595, 53752, 67190, 134380, 268760, 1605841, 3211682, 6423364, 8029205, 12846728, 16058410, 32116820, 64233640]

約数ペア:

[(1, 64233640), (2, 32116820), (4, 16058410), (5, 12846728), (8, 8029205), (10, 6423364), (20, 3211682), (40, 1605841), (239, 268760), (478, 134380), (956, 67190), (1195, 53752), (1912, 33595), (2390, 26876), (4780, 13438), (6719, 9560)]