15907280

素因数分解:

$2^4\times 5^1\times {\mathrm{198841}}^1$

素因数の和:198854

約数の個数: 20

約数和(自身を含む): 36984612

約数和(自身を除く): 21077332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 198841, 397682, 795364, 994205, 1590728, 1988410, 3181456, 3976820, 7953640, 15907280]

約数ペア:

[(1, 15907280), (2, 7953640), (4, 3976820), (5, 3181456), (8, 1988410), (10, 1590728), (16, 994205), (20, 795364), (40, 397682), (80, 198841)]