22870640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21991}}^1$

素因数の和:22017

約数の個数: 40

約数和(自身を含む): 57267168

約数和(自身を除く): 34396528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 21991, 43982, 87964, 109955, 175928, 219910, 285883, 351856, 439820, 571766, 879640, 1143532, 1429415, 1759280, 2287064, 2858830, 4574128, 5717660, 11435320, 22870640]

約数ペア:

[(1, 22870640), (2, 11435320), (4, 5717660), (5, 4574128), (8, 2858830), (10, 2287064), (13, 1759280), (16, 1429415), (20, 1143532), (26, 879640), (40, 571766), (52, 439820), (65, 351856), (80, 285883), (104, 219910), (130, 175928), (208, 109955), (260, 87964), (520, 43982), (1040, 21991)]