82878980

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{25423}}^1$

素因数の和:25595

約数の個数: 24

約数和(自身を含む): 175120512

約数和(自身を除く): 92241532

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 25423, 50846, 101692, 127115, 254230, 508460, 4143949, 8287898, 16575796, 20719745, 41439490, 82878980]

約数ペア:

[(1, 82878980), (2, 41439490), (4, 20719745), (5, 16575796), (10, 8287898), (20, 4143949), (163, 508460), (326, 254230), (652, 127115), (815, 101692), (1630, 50846), (3260, 25423)]