40090280

素因数分解:

$2^3\times 5^1\times {\mathrm{1002257}}^1$

素因数の和:1002268

約数の個数: 16

約数和(自身を含む): 90203220

約数和(自身を除く): 50112940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1002257, 2004514, 4009028, 5011285, 8018056, 10022570, 20045140, 40090280]

約数ペア:

[(1, 40090280), (2, 20045140), (4, 10022570), (5, 8018056), (8, 5011285), (10, 4009028), (20, 2004514), (40, 1002257)]