20010380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{76963}}^1$

素因数の和:76985

約数の個数: 24

約数和(自身を含む): 45254832

約数和(自身を除く): 25244452

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 76963, 153926, 307852, 384815, 769630, 1000519, 1539260, 2001038, 4002076, 5002595, 10005190, 20010380]

約数ペア:

[(1, 20010380), (2, 10005190), (4, 5002595), (5, 4002076), (10, 2001038), (13, 1539260), (20, 1000519), (26, 769630), (52, 384815), (65, 307852), (130, 153926), (260, 76963)]