19806960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{82529}}^1$

素因数の和:82545

約数の個数: 40

約数和(自身を含む): 61402320

約数和(自身を除く): 41595360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 82529, 165058, 247587, 330116, 412645, 495174, 660232, 825290, 990348, 1237935, 1320464, 1650580, 1980696, 2475870, 3301160, 3961392, 4951740, 6602320, 9903480, 19806960]

約数ペア:

[(1, 19806960), (2, 9903480), (3, 6602320), (4, 4951740), (5, 3961392), (6, 3301160), (8, 2475870), (10, 1980696), (12, 1650580), (15, 1320464), (16, 1237935), (20, 990348), (24, 825290), (30, 660232), (40, 495174), (48, 412645), (60, 330116), (80, 247587), (120, 165058), (240, 82529)]