20164886480

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1546387}}^1$

素因数の和:1546563

約数の個数: 40

約数和(自身を含む): 47171019552

約数和(自身を除く): 27006133072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 6520, 13040, 1546387, 3092774, 6185548, 7731935, 12371096, 15463870, 24742192, 30927740, 61855480, 123710960, 252061081, 504122162, 1008244324, 1260305405, 2016488648, 2520610810, 4032977296, 5041221620, 10082443240, 20164886480]

約数ペア:

[(1, 20164886480), (2, 10082443240), (4, 5041221620), (5, 4032977296), (8, 2520610810), (10, 2016488648), (16, 1260305405), (20, 1008244324), (40, 504122162), (80, 252061081), (163, 123710960), (326, 61855480), (652, 30927740), (815, 24742192), (1304, 15463870), (1630, 12371096), (2608, 7731935), (3260, 6185548), (6520, 3092774), (13040, 1546387)]