20121241720

素因数分解:

$2^3\times 5^1\times {\mathrm{503031043}}^1$

素因数の和:503031054

約数の個数: 16

約数和(自身を含む): 45272793960

約数和(自身を除く): 25151552240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503031043, 1006062086, 2012124172, 2515155215, 4024248344, 5030310430, 10060620860, 20121241720]

約数ペア:

[(1, 20121241720), (2, 10060620860), (4, 5030310430), (5, 4024248344), (8, 2515155215), (10, 2012124172), (20, 1006062086), (40, 503031043)]