18080120

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2879}}^1$

素因数の和:3047

約数の個数: 32

約数和(自身を含む): 40953600

約数和(自身を除く): 22873480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 2879, 3140, 5758, 6280, 11516, 14395, 23032, 28790, 57580, 115160, 452003, 904006, 1808012, 2260015, 3616024, 4520030, 9040060, 18080120]

約数ペア:

[(1, 18080120), (2, 9040060), (4, 4520030), (5, 3616024), (8, 2260015), (10, 1808012), (20, 904006), (40, 452003), (157, 115160), (314, 57580), (628, 28790), (785, 23032), (1256, 14395), (1570, 11516), (2879, 6280), (3140, 5758)]