12919160

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4549}}^1$

素因数の和:4631

約数の個数: 32

約数和(自身を含む): 29484000

約数和(自身を除く): 16564840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 4549, 9098, 18196, 22745, 36392, 45490, 90980, 181960, 322979, 645958, 1291916, 1614895, 2583832, 3229790, 6459580, 12919160]

約数ペア:

[(1, 12919160), (2, 6459580), (4, 3229790), (5, 2583832), (8, 1614895), (10, 1291916), (20, 645958), (40, 322979), (71, 181960), (142, 90980), (284, 45490), (355, 36392), (568, 22745), (710, 18196), (1420, 9098), (2840, 4549)]