921036140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{648617}}^1$

素因数の和:648697

約数の個数: 24

約数和(自身を含む): 1961420832

約数和(自身を除く): 1040384692

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 648617, 1297234, 2594468, 3243085, 6486170, 12972340, 46051807, 92103614, 184207228, 230259035, 460518070, 921036140]

約数ペア:

[(1, 921036140), (2, 460518070), (4, 230259035), (5, 184207228), (10, 92103614), (20, 46051807), (71, 12972340), (142, 6486170), (284, 3243085), (355, 2594468), (710, 1297234), (1420, 648617)]