18202040

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4027}}^1$

素因数の和:4151

約数の個数: 32

約数和(自身を含む): 41327280

約数和(自身を除く): 23125240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4027, 4520, 8054, 16108, 20135, 32216, 40270, 80540, 161080, 455051, 910102, 1820204, 2275255, 3640408, 4550510, 9101020, 18202040]

約数ペア:

[(1, 18202040), (2, 9101020), (4, 4550510), (5, 3640408), (8, 2275255), (10, 1820204), (20, 910102), (40, 455051), (113, 161080), (226, 80540), (452, 40270), (565, 32216), (904, 20135), (1130, 16108), (2260, 8054), (4027, 4520)]