81397966

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1723}}^1$

素因数の和:1840

約数の個数: 32

約数和(自身を含む): 139023360

約数和(自身を除く): 57625394

約数列:

[1, 2, 13, 23, 26, 46, 79, 158, 299, 598, 1027, 1723, 1817, 2054, 3446, 3634, 22399, 23621, 39629, 44798, 47242, 79258, 136117, 272234, 515177, 1030354, 1769521, 3130691, 3539042, 6261382, 40698983, 81397966]

約数ペア:

[(1, 81397966), (2, 40698983), (13, 6261382), (23, 3539042), (26, 3130691), (46, 1769521), (79, 1030354), (158, 515177), (299, 272234), (598, 136117), (1027, 79258), (1723, 47242), (1817, 44798), (2054, 39629), (3446, 23621), (3634, 22399)]