20175280

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{6151}}^1$

素因数の和:6205

約数の個数: 40

約数和(自身を含む): 48059424

約数和(自身を除く): 27884144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 6151, 12302, 24604, 30755, 49208, 61510, 98416, 123020, 246040, 252191, 492080, 504382, 1008764, 1260955, 2017528, 2521910, 4035056, 5043820, 10087640, 20175280]

約数ペア:

[(1, 20175280), (2, 10087640), (4, 5043820), (5, 4035056), (8, 2521910), (10, 2017528), (16, 1260955), (20, 1008764), (40, 504382), (41, 492080), (80, 252191), (82, 246040), (164, 123020), (205, 98416), (328, 61510), (410, 49208), (656, 30755), (820, 24604), (1640, 12302), (3280, 6151)]