18122980

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{12413}}^1$

素因数の和:12495

約数の個数: 24

約数和(自身を含む): 38582712

約数和(自身を除く): 20459732

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 12413, 24826, 49652, 62065, 124130, 248260, 906149, 1812298, 3624596, 4530745, 9061490, 18122980]

約数ペア:

[(1, 18122980), (2, 9061490), (4, 4530745), (5, 3624596), (10, 1812298), (20, 906149), (73, 248260), (146, 124130), (292, 62065), (365, 49652), (730, 24826), (1460, 12413)]