20389030

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{421}}^1$

素因数の和:624

約数の個数: 32

約数和(自身を含む): 38283840

約数和(自身を除く): 17894810

約数列:

[1, 2, 5, 10, 29, 58, 145, 167, 290, 334, 421, 835, 842, 1670, 2105, 4210, 4843, 9686, 12209, 24215, 24418, 48430, 61045, 70307, 122090, 140614, 351535, 703070, 2038903, 4077806, 10194515, 20389030]

約数ペア:

[(1, 20389030), (2, 10194515), (5, 4077806), (10, 2038903), (29, 703070), (58, 351535), (145, 140614), (167, 122090), (290, 70307), (334, 61045), (421, 48430), (835, 24418), (842, 24215), (1670, 12209), (2105, 9686), (4210, 4843)]