30861560

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{7639}}^1$

素因数の和:7751

約数の個数: 32

約数和(自身を含む): 70135200

約数和(自身を除く): 39273640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 7639, 15278, 30556, 38195, 61112, 76390, 152780, 305560, 771539, 1543078, 3086156, 3857695, 6172312, 7715390, 15430780, 30861560]

約数ペア:

[(1, 30861560), (2, 15430780), (4, 7715390), (5, 6172312), (8, 3857695), (10, 3086156), (20, 1543078), (40, 771539), (101, 305560), (202, 152780), (404, 76390), (505, 61112), (808, 38195), (1010, 30556), (2020, 15278), (4040, 7639)]