2645492020

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{887749}}^1$

素因数の和:887907

約数の個数: 24

約数和(自身を含む): 5592825000

約数和(自身を除く): 2947332980

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 887749, 1775498, 3550996, 4438745, 8877490, 17754980, 132274601, 264549202, 529098404, 661373005, 1322746010, 2645492020]

約数ペア:

[(1, 2645492020), (2, 1322746010), (4, 661373005), (5, 529098404), (10, 264549202), (20, 132274601), (149, 17754980), (298, 8877490), (596, 4438745), (745, 3550996), (1490, 1775498), (2980, 887749)]