8901980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6269}}^1$

素因数の和:6349

約数の個数: 24

約数和(自身を含む): 18960480

約数和(自身を除く): 10058500

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 6269, 12538, 25076, 31345, 62690, 125380, 445099, 890198, 1780396, 2225495, 4450990, 8901980]

約数ペア:

[(1, 8901980), (2, 4450990), (4, 2225495), (5, 1780396), (10, 890198), (20, 445099), (71, 125380), (142, 62690), (284, 31345), (355, 25076), (710, 12538), (1420, 6269)]