72041680

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{11399}}^1$

素因数の和:11491

約数の個数: 40

約数和(自身を含む): 169632000

約数和(自身を除く): 97590320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 11399, 22798, 45596, 56995, 91192, 113990, 182384, 227980, 455960, 900521, 911920, 1801042, 3602084, 4502605, 7204168, 9005210, 14408336, 18010420, 36020840, 72041680]

約数ペア:

[(1, 72041680), (2, 36020840), (4, 18010420), (5, 14408336), (8, 9005210), (10, 7204168), (16, 4502605), (20, 3602084), (40, 1801042), (79, 911920), (80, 900521), (158, 455960), (316, 227980), (395, 182384), (632, 113990), (790, 91192), (1264, 56995), (1580, 45596), (3160, 22798), (6320, 11399)]