40016540

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{11981}}^1$

素因数の和:12157

約数の個数: 24

約数和(自身を含む): 84544992

約数和(自身を除く): 44528452

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 11981, 23962, 47924, 59905, 119810, 239620, 2000827, 4001654, 8003308, 10004135, 20008270, 40016540]

約数ペア:

[(1, 40016540), (2, 20008270), (4, 10004135), (5, 8003308), (10, 4001654), (20, 2000827), (167, 239620), (334, 119810), (668, 59905), (835, 47924), (1670, 23962), (3340, 11981)]