2668640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1283}}^1$

素因数の和:1311

約数の個数: 48

約数和(自身を含む): 6794928

約数和(自身を除く): 4126288

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 1283, 2080, 2566, 5132, 6415, 10264, 12830, 16679, 20528, 25660, 33358, 41056, 51320, 66716, 83395, 102640, 133432, 166790, 205280, 266864, 333580, 533728, 667160, 1334320, 2668640]

約数ペア:

[(1, 2668640), (2, 1334320), (4, 667160), (5, 533728), (8, 333580), (10, 266864), (13, 205280), (16, 166790), (20, 133432), (26, 102640), (32, 83395), (40, 66716), (52, 51320), (65, 41056), (80, 33358), (104, 25660), (130, 20528), (160, 16679), (208, 12830), (260, 10264), (416, 6415), (520, 5132), (1040, 2566), (1283, 2080)]