81169406

素因数分解:

$2^1\times {\mathrm{19}}^3\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 131970720

約数和(自身を除く): 50801314

約数列:

[1, 2, 19, 38, 61, 97, 122, 194, 361, 722, 1159, 1843, 2318, 3686, 5917, 6859, 11834, 13718, 22021, 35017, 44042, 70034, 112423, 224846, 418399, 665323, 836798, 1330646, 2136037, 4272074, 40584703, 81169406]

約数ペア:

[(1, 81169406), (2, 40584703), (19, 4272074), (38, 2136037), (61, 1330646), (97, 836798), (122, 665323), (194, 418399), (361, 224846), (722, 112423), (1159, 70034), (1843, 44042), (2318, 35017), (3686, 22021), (5917, 13718), (6859, 11834)]