647135380

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{752483}}^1$

素因数の和:752535

約数の個数: 24

約数和(自身を含む): 1390590432

約数和(自身を除く): 743455052

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 752483, 1504966, 3009932, 3762415, 7524830, 15049660, 32356769, 64713538, 129427076, 161783845, 323567690, 647135380]

約数ペア:

[(1, 647135380), (2, 323567690), (4, 161783845), (5, 129427076), (10, 64713538), (20, 32356769), (43, 15049660), (86, 7524830), (172, 3762415), (215, 3009932), (430, 1504966), (860, 752483)]