20035015

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4003}}^1$

素因数の和:4039

約数の個数: 32

約数和(自身を含む): 32288256

約数和(自身を除く): 12253241

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 385, 455, 715, 1001, 4003, 5005, 20015, 28021, 44033, 52039, 140105, 220165, 260195, 308231, 364273, 572429, 1541155, 1821365, 2862145, 4007003, 20035015]

約数ペア:

[(1, 20035015), (5, 4007003), (7, 2862145), (11, 1821365), (13, 1541155), (35, 572429), (55, 364273), (65, 308231), (77, 260195), (91, 220165), (143, 140105), (385, 52039), (455, 44033), (715, 28021), (1001, 20015), (4003, 5005)]