861512155

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{4139}}^1$

素因数の和:4483

約数の個数: 32

約数和(自身を含む): 1247961600

約数和(自身を除く): 386449445

約数列:

[1, 5, 7, 19, 35, 95, 133, 313, 665, 1565, 2191, 4139, 5947, 10955, 20695, 28973, 29735, 41629, 78641, 144865, 208145, 393205, 550487, 1295507, 2752435, 6477535, 9068549, 24614633, 45342745, 123073165, 172302431, 861512155]

約数ペア:

[(1, 861512155), (5, 172302431), (7, 123073165), (19, 45342745), (35, 24614633), (95, 9068549), (133, 6477535), (313, 2752435), (665, 1295507), (1565, 550487), (2191, 393205), (4139, 208145), (5947, 144865), (10955, 78641), (20695, 41629), (28973, 29735)]