2017720

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{691}}^1$

素因数の和:775

約数の個数: 32

約数和(自身を含む): 4608720

約数和(自身を除く): 2591000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 691, 730, 1382, 1460, 2764, 2920, 3455, 5528, 6910, 13820, 27640, 50443, 100886, 201772, 252215, 403544, 504430, 1008860, 2017720]

約数ペア:

[(1, 2017720), (2, 1008860), (4, 504430), (5, 403544), (8, 252215), (10, 201772), (20, 100886), (40, 50443), (73, 27640), (146, 13820), (292, 6910), (365, 5528), (584, 3455), (691, 2920), (730, 2764), (1382, 1460)]