81588988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{19861}}^1$

素因数の和:19957

約数の個数: 24

約数和(自身を含む): 155718080

約数和(自身を除く): 74129092

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 2054, 4108, 19861, 39722, 79444, 258193, 516386, 1032772, 1569019, 3138038, 6276076, 20397247, 40794494, 81588988]

約数ペア:

[(1, 81588988), (2, 40794494), (4, 20397247), (13, 6276076), (26, 3138038), (52, 1569019), (79, 1032772), (158, 516386), (316, 258193), (1027, 79444), (2054, 39722), (4108, 19861)]