17803960

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6269}}^1$

素因数の和:6351

約数の個数: 32

約数和(自身を含む): 40629600

約数和(自身を除く): 22825640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 6269, 12538, 25076, 31345, 50152, 62690, 125380, 250760, 445099, 890198, 1780396, 2225495, 3560792, 4450990, 8901980, 17803960]

約数ペア:

[(1, 17803960), (2, 8901980), (4, 4450990), (5, 3560792), (8, 2225495), (10, 1780396), (20, 890198), (40, 445099), (71, 250760), (142, 125380), (284, 62690), (355, 50152), (568, 31345), (710, 25076), (1420, 12538), (2840, 6269)]