28901660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{4003}}^1$

素因数の和:4050

約数の個数: 36

約数和(自身を含む): 64072008

約数和(自身を除く): 35170348

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 4003, 7220, 8006, 16012, 20015, 40030, 76057, 80060, 152114, 304228, 380285, 760570, 1445083, 1521140, 2890166, 5780332, 7225415, 14450830, 28901660]

約数ペア:

[(1, 28901660), (2, 14450830), (4, 7225415), (5, 5780332), (10, 2890166), (19, 1521140), (20, 1445083), (38, 760570), (76, 380285), (95, 304228), (190, 152114), (361, 80060), (380, 76057), (722, 40030), (1444, 20015), (1805, 16012), (3610, 8006), (4003, 7220)]