12551380

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8839}}^1$

素因数の和:8919

約数の個数: 24

約数和(自身を含む): 26732160

約数和(自身を除く): 14180780

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 8839, 17678, 35356, 44195, 88390, 176780, 627569, 1255138, 2510276, 3137845, 6275690, 12551380]

約数ペア:

[(1, 12551380), (2, 6275690), (4, 3137845), (5, 2510276), (10, 1255138), (20, 627569), (71, 176780), (142, 88390), (284, 44195), (355, 35356), (710, 17678), (1420, 8839)]