171565640

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{37957}}^1$

素因数の和:38081

約数の個数: 32

約数和(自身を含む): 389449080

約数和(自身を除く): 217883440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 37957, 75914, 151828, 189785, 303656, 379570, 759140, 1518280, 4289141, 8578282, 17156564, 21445705, 34313128, 42891410, 85782820, 171565640]

約数ペア:

[(1, 171565640), (2, 85782820), (4, 42891410), (5, 34313128), (8, 21445705), (10, 17156564), (20, 8578282), (40, 4289141), (113, 1518280), (226, 759140), (452, 379570), (565, 303656), (904, 189785), (1130, 151828), (2260, 75914), (4520, 37957)]