180090160

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{72617}}^1$

素因数の和:72661

約数の個数: 40

約数和(自身を含む): 432222336

約数和(自身を除く): 252132176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 72617, 145234, 290468, 363085, 580936, 726170, 1161872, 1452340, 2251127, 2904680, 4502254, 5809360, 9004508, 11255635, 18009016, 22511270, 36018032, 45022540, 90045080, 180090160]

約数ペア:

[(1, 180090160), (2, 90045080), (4, 45022540), (5, 36018032), (8, 22511270), (10, 18009016), (16, 11255635), (20, 9004508), (31, 5809360), (40, 4502254), (62, 2904680), (80, 2251127), (124, 1452340), (155, 1161872), (248, 726170), (310, 580936), (496, 363085), (620, 290468), (1240, 145234), (2480, 72617)]