20121608440

素因数分解:

$2^3\times 5^1\times {\mathrm{503040211}}^1$

素因数の和:503040222

約数の個数: 16

約数和(自身を含む): 45273619080

約数和(自身を除く): 25152010640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503040211, 1006080422, 2012160844, 2515201055, 4024321688, 5030402110, 10060804220, 20121608440]

約数ペア:

[(1, 20121608440), (2, 10060804220), (4, 5030402110), (5, 4024321688), (8, 2515201055), (10, 2012160844), (20, 1006080422), (40, 503040211)]