2489700020

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{473327}}^1$

素因数の和:473599

約数の個数: 24

約数和(自身を含む): 5248260864

約数和(自身を除く): 2758560844

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 5260, 473327, 946654, 1893308, 2366635, 4733270, 9466540, 124485001, 248970002, 497940004, 622425005, 1244850010, 2489700020]

約数ペア:

[(1, 2489700020), (2, 1244850010), (4, 622425005), (5, 497940004), (10, 248970002), (20, 124485001), (263, 9466540), (526, 4733270), (1052, 2366635), (1315, 1893308), (2630, 946654), (5260, 473327)]