997249360

素因数分解:

$2^4\times 5^1\times {\mathrm{12465617}}^1$

素因数の和:12465630

約数の個数: 20

約数和(自身を含む): 2318604948

約数和(自身を除く): 1321355588

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12465617, 24931234, 49862468, 62328085, 99724936, 124656170, 199449872, 249312340, 498624680, 997249360]

約数ペア:

[(1, 997249360), (2, 498624680), (4, 249312340), (5, 199449872), (8, 124656170), (10, 99724936), (16, 62328085), (20, 49862468), (40, 24931234), (80, 12465617)]