20153646565

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{107621}}^1$

素因数の和:107749

約数の個数: 32

約数和(自身を含む): 27048422016

約数和(自身を除く): 6894775451

約数列:

[1, 5, 13, 43, 65, 67, 215, 335, 559, 871, 2795, 2881, 4355, 14405, 37453, 107621, 187265, 538105, 1399073, 4627703, 6995365, 7210607, 23138515, 36053035, 60160139, 93737891, 300800695, 310056101, 468689455, 1550280505, 4030729313, 20153646565]

約数ペア:

[(1, 20153646565), (5, 4030729313), (13, 1550280505), (43, 468689455), (65, 310056101), (67, 300800695), (215, 93737891), (335, 60160139), (559, 36053035), (871, 23138515), (2795, 7210607), (2881, 6995365), (4355, 4627703), (14405, 1399073), (37453, 538105), (107621, 187265)]