68419640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{19219}}^1$

素因数の和:19319

約数の個数: 32

約数和(自身を含む): 155682000

約数和(自身を除く): 87262360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 19219, 38438, 76876, 96095, 153752, 192190, 384380, 768760, 1710491, 3420982, 6841964, 8552455, 13683928, 17104910, 34209820, 68419640]

約数ペア:

[(1, 68419640), (2, 34209820), (4, 17104910), (5, 13683928), (8, 8552455), (10, 6841964), (20, 3420982), (40, 1710491), (89, 768760), (178, 384380), (356, 192190), (445, 153752), (712, 96095), (890, 76876), (1780, 38438), (3560, 19219)]