80391656

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{641}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 154041480

約数和(自身を除く): 73649824

約数列:

[1, 2, 4, 8, 61, 122, 244, 257, 488, 514, 641, 1028, 1282, 2056, 2564, 5128, 15677, 31354, 39101, 62708, 78202, 125416, 156404, 164737, 312808, 329474, 658948, 1317896, 10048957, 20097914, 40195828, 80391656]

約数ペア:

[(1, 80391656), (2, 40195828), (4, 20097914), (8, 10048957), (61, 1317896), (122, 658948), (244, 329474), (257, 312808), (488, 164737), (514, 156404), (641, 125416), (1028, 78202), (1282, 62708), (2056, 39101), (2564, 31354), (5128, 15677)]