81078808

素因数分解:

$2^3\times {\mathrm{97}}^1\times {\mathrm{163}}^1\times {\mathrm{641}}^1$

素因数の和:907

約数の個数: 32

約数和(自身を含む): 154773360

約数和(自身を除く): 73694552

約数列:

[1, 2, 4, 8, 97, 163, 194, 326, 388, 641, 652, 776, 1282, 1304, 2564, 5128, 15811, 31622, 62177, 63244, 104483, 124354, 126488, 208966, 248708, 417932, 497416, 835864, 10134851, 20269702, 40539404, 81078808]

約数ペア:

[(1, 81078808), (2, 40539404), (4, 20269702), (8, 10134851), (97, 835864), (163, 497416), (194, 417932), (326, 248708), (388, 208966), (641, 126488), (652, 124354), (776, 104483), (1282, 63244), (1304, 62177), (2564, 31622), (5128, 15811)]