9988340

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{3181}}^1$

素因数の和:3347

約数の個数: 24

約数和(自身を含む): 21115752

約数和(自身を除く): 11127412

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 3181, 6362, 12724, 15905, 31810, 63620, 499417, 998834, 1997668, 2497085, 4994170, 9988340]

約数ペア:

[(1, 9988340), (2, 4994170), (4, 2497085), (5, 1997668), (10, 998834), (20, 499417), (157, 63620), (314, 31810), (628, 15905), (785, 12724), (1570, 6362), (3140, 3181)]