237781520

素因数分解:

$2^4\times 5^1\times {\mathrm{2972269}}^1$

素因数の和:2972282

約数の個数: 20

約数和(自身を含む): 552842220

約数和(自身を除く): 315060700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2972269, 5944538, 11889076, 14861345, 23778152, 29722690, 47556304, 59445380, 118890760, 237781520]

約数ペア:

[(1, 237781520), (2, 118890760), (4, 59445380), (5, 47556304), (8, 29722690), (10, 23778152), (16, 14861345), (20, 11889076), (40, 5944538), (80, 2972269)]