1555141820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{72467}}^1$

素因数の和:72542

約数の個数: 48

約数和(自身を含む): 3469767840

約数和(自身を除く): 1914626020

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 116, 145, 148, 185, 290, 370, 580, 740, 1073, 2146, 4292, 5365, 10730, 21460, 72467, 144934, 289868, 362335, 724670, 1449340, 2101543, 2681279, 4203086, 5362558, 8406172, 10507715, 10725116, 13406395, 21015430, 26812790, 42030860, 53625580, 77757091, 155514182, 311028364, 388785455, 777570910, 1555141820]

約数ペア:

[(1, 1555141820), (2, 777570910), (4, 388785455), (5, 311028364), (10, 155514182), (20, 77757091), (29, 53625580), (37, 42030860), (58, 26812790), (74, 21015430), (116, 13406395), (145, 10725116), (148, 10507715), (185, 8406172), (290, 5362558), (370, 4203086), (580, 2681279), (740, 2101543), (1073, 1449340), (2146, 724670), (4292, 362335), (5365, 289868), (10730, 144934), (21460, 72467)]