20280778048

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{18640421}}^1$

素因数の和:18640450

約数の個数: 28

約数和(自身を含む): 42612004692

約数和(自身を除く): 22331226644

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 544, 1088, 18640421, 37280842, 74561684, 149123368, 298246736, 316887157, 596493472, 633774314, 1192986944, 1267548628, 2535097256, 5070194512, 10140389024, 20280778048]

約数ペア:

[(1, 20280778048), (2, 10140389024), (4, 5070194512), (8, 2535097256), (16, 1267548628), (17, 1192986944), (32, 633774314), (34, 596493472), (64, 316887157), (68, 298246736), (136, 149123368), (272, 74561684), (544, 37280842), (1088, 18640421)]