9904940

素因数分解:

$2^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1103}}^1$

素因数の和:1561

約数の個数: 24

約数和(自身を含む): 20865600

約数和(自身を除く): 10960660

約数列:

[1, 2, 4, 5, 10, 20, 449, 898, 1103, 1796, 2206, 2245, 4412, 4490, 5515, 8980, 11030, 22060, 495247, 990494, 1980988, 2476235, 4952470, 9904940]

約数ペア:

[(1, 9904940), (2, 4952470), (4, 2476235), (5, 1980988), (10, 990494), (20, 495247), (449, 22060), (898, 11030), (1103, 8980), (1796, 5515), (2206, 4490), (2245, 4412)]