20638264

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{419}}^1$

素因数の和:603

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 19278536

約数列:

[1, 2, 4, 8, 47, 94, 131, 188, 262, 376, 419, 524, 838, 1048, 1676, 3352, 6157, 12314, 19693, 24628, 39386, 49256, 54889, 78772, 109778, 157544, 219556, 439112, 2579783, 5159566, 10319132, 20638264]

約数ペア:

[(1, 20638264), (2, 10319132), (4, 5159566), (8, 2579783), (47, 439112), (94, 219556), (131, 157544), (188, 109778), (262, 78772), (376, 54889), (419, 49256), (524, 39386), (838, 24628), (1048, 19693), (1676, 12314), (3352, 6157)]