161755280

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{9067}}^1$

素因数の和:9303

約数の個数: 40

約数和(自身を含む): 377809152

約数和(自身を除く): 216053872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1784, 2230, 3568, 4460, 8920, 9067, 17840, 18134, 36268, 45335, 72536, 90670, 145072, 181340, 362680, 725360, 2021941, 4043882, 8087764, 10109705, 16175528, 20219410, 32351056, 40438820, 80877640, 161755280]

約数ペア:

[(1, 161755280), (2, 80877640), (4, 40438820), (5, 32351056), (8, 20219410), (10, 16175528), (16, 10109705), (20, 8087764), (40, 4043882), (80, 2021941), (223, 725360), (446, 362680), (892, 181340), (1115, 145072), (1784, 90670), (2230, 72536), (3568, 45335), (4460, 36268), (8920, 18134), (9067, 17840)]