288340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1109}}^1$

素因数の和:1131

約数の個数: 24

約数和(自身を含む): 652680

約数和(自身を除く): 364340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1109, 2218, 4436, 5545, 11090, 14417, 22180, 28834, 57668, 72085, 144170, 288340]

約数ペア:

[(1, 288340), (2, 144170), (4, 72085), (5, 57668), (10, 28834), (13, 22180), (20, 14417), (26, 11090), (52, 5545), (65, 4436), (130, 2218), (260, 1109)]