81019150

素因数分解:

$2^1\times 5^2\times {\mathrm{163}}^1\times {\mathrm{9941}}^1$

素因数の和:10116

約数の個数: 24

約数和(自身を含む): 151635384

約数和(自身を除く): 70616234

約数列:

[1, 2, 5, 10, 25, 50, 163, 326, 815, 1630, 4075, 8150, 9941, 19882, 49705, 99410, 248525, 497050, 1620383, 3240766, 8101915, 16203830, 40509575, 81019150]

約数ペア:

[(1, 81019150), (2, 40509575), (5, 16203830), (10, 8101915), (25, 3240766), (50, 1620383), (163, 497050), (326, 248525), (815, 99410), (1630, 49705), (4075, 19882), (8150, 9941)]