8172890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{389}}^1$

素因数の和:598

約数の個数: 32

約数和(自身を含む): 16174080

約数和(自身を除く): 8001190

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 191, 382, 389, 778, 955, 1910, 1945, 2101, 3890, 4202, 4279, 8558, 10505, 21010, 21395, 42790, 74299, 148598, 371495, 742990, 817289, 1634578, 4086445, 8172890]

約数ペア:

[(1, 8172890), (2, 4086445), (5, 1634578), (10, 817289), (11, 742990), (22, 371495), (55, 148598), (110, 74299), (191, 42790), (382, 21395), (389, 21010), (778, 10505), (955, 8558), (1910, 4279), (1945, 4202), (2101, 3890)]