28844140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{110939}}^1$

素因数の和:110961

約数の個数: 24

約数和(自身を含む): 65232720

約数和(自身を除く): 36388580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 110939, 221878, 443756, 554695, 1109390, 1442207, 2218780, 2884414, 5768828, 7211035, 14422070, 28844140]

約数ペア:

[(1, 28844140), (2, 14422070), (4, 7211035), (5, 5768828), (10, 2884414), (13, 2218780), (20, 1442207), (26, 1109390), (52, 554695), (65, 443756), (130, 221878), (260, 110939)]