20121255820

素因数分解:

$2^2\times 5^1\times {\mathrm{5021}}^1\times {\mathrm{200371}}^1$

素因数の和:205401

約数の個数: 24

約数和(自身を含む): 42263263728

約数和(自身を除く): 22142007908

約数列:

[1, 2, 4, 5, 10, 20, 5021, 10042, 20084, 25105, 50210, 100420, 200371, 400742, 801484, 1001855, 2003710, 4007420, 1006062791, 2012125582, 4024251164, 5030313955, 10060627910, 20121255820]

約数ペア:

[(1, 20121255820), (2, 10060627910), (4, 5030313955), (5, 4024251164), (10, 2012125582), (20, 1006062791), (5021, 4007420), (10042, 2003710), (20084, 1001855), (25105, 801484), (50210, 400742), (100420, 200371)]