20455288

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{11783}}^1$

素因数の和:11827

約数の個数: 32

約数和(自身を含む): 45250560

約数和(自身を除く): 24795272

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 11783, 23566, 47132, 82481, 94264, 164962, 329924, 365273, 659848, 730546, 1461092, 2556911, 2922184, 5113822, 10227644, 20455288]

約数ペア:

[(1, 20455288), (2, 10227644), (4, 5113822), (7, 2922184), (8, 2556911), (14, 1461092), (28, 730546), (31, 659848), (56, 365273), (62, 329924), (124, 164962), (217, 94264), (248, 82481), (434, 47132), (868, 23566), (1736, 11783)]