12897820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{439}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 29494080

約数和(自身を除く): 16596260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 226, 260, 439, 452, 565, 878, 1130, 1469, 1756, 2195, 2260, 2938, 4390, 5707, 5876, 7345, 8780, 11414, 14690, 22828, 28535, 29380, 49607, 57070, 99214, 114140, 198428, 248035, 496070, 644891, 992140, 1289782, 2579564, 3224455, 6448910, 12897820]

約数ペア:

[(1, 12897820), (2, 6448910), (4, 3224455), (5, 2579564), (10, 1289782), (13, 992140), (20, 644891), (26, 496070), (52, 248035), (65, 198428), (113, 114140), (130, 99214), (226, 57070), (260, 49607), (439, 29380), (452, 28535), (565, 22828), (878, 14690), (1130, 11414), (1469, 8780), (1756, 7345), (2195, 5876), (2260, 5707), (2938, 4390)]