4257160

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1499}}^1$

素因数の和:1581

約数の個数: 32

約数和(自身を含む): 9720000

約数和(自身を除く): 5462840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 1499, 2840, 2998, 5996, 7495, 11992, 14990, 29980, 59960, 106429, 212858, 425716, 532145, 851432, 1064290, 2128580, 4257160]

約数ペア:

[(1, 4257160), (2, 2128580), (4, 1064290), (5, 851432), (8, 532145), (10, 425716), (20, 212858), (40, 106429), (71, 59960), (142, 29980), (284, 14990), (355, 11992), (568, 7495), (710, 5996), (1420, 2998), (1499, 2840)]