81940696

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{317}}^1\times {\mathrm{409}}^1$

素因数の和:811

約数の個数: 32

約数和(自身を含む): 156456000

約数和(自身を除く): 74515304

約数列:

[1, 2, 4, 8, 79, 158, 316, 317, 409, 632, 634, 818, 1268, 1636, 2536, 3272, 25043, 32311, 50086, 64622, 100172, 129244, 129653, 200344, 258488, 259306, 518612, 1037224, 10242587, 20485174, 40970348, 81940696]

約数ペア:

[(1, 81940696), (2, 40970348), (4, 20485174), (8, 10242587), (79, 1037224), (158, 518612), (316, 259306), (317, 258488), (409, 200344), (632, 129653), (634, 129244), (818, 100172), (1268, 64622), (1636, 50086), (2536, 32311), (3272, 25043)]