8965280

素因数分解:

$2^5\times 5^1\times {\mathrm{137}}^1\times {\mathrm{409}}^1$

素因数の和:561

約数の個数: 48

約数和(自身を含む): 21387240

約数和(自身を除く): 12421960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 137, 160, 274, 409, 548, 685, 818, 1096, 1370, 1636, 2045, 2192, 2740, 3272, 4090, 4384, 5480, 6544, 8180, 10960, 13088, 16360, 21920, 32720, 56033, 65440, 112066, 224132, 280165, 448264, 560330, 896528, 1120660, 1793056, 2241320, 4482640, 8965280]

約数ペア:

[(1, 8965280), (2, 4482640), (4, 2241320), (5, 1793056), (8, 1120660), (10, 896528), (16, 560330), (20, 448264), (32, 280165), (40, 224132), (80, 112066), (137, 65440), (160, 56033), (274, 32720), (409, 21920), (548, 16360), (685, 13088), (818, 10960), (1096, 8180), (1370, 6544), (1636, 5480), (2045, 4384), (2192, 4090), (2740, 3272)]