9974990

素因数分解:

$2^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{4139}}^1$

素因数の和:4387

約数の個数: 16

約数和(自身を含む): 18033840

約数和(自身を除く): 8058850

約数列:

[1, 2, 5, 10, 241, 482, 1205, 2410, 4139, 8278, 20695, 41390, 997499, 1994998, 4987495, 9974990]

約数ペア:

[(1, 9974990), (2, 4987495), (5, 1994998), (10, 997499), (241, 41390), (482, 20695), (1205, 8278), (2410, 4139)]