20618790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{40429}}^1$

素因数の和:40456

約数の個数: 32

約数和(自身を含む): 52397280

約数和(自身を除く): 31778490

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 40429, 80858, 121287, 202145, 242574, 404290, 606435, 687293, 1212870, 1374586, 2061879, 3436465, 4123758, 6872930, 10309395, 20618790]

約数ペア:

[(1, 20618790), (2, 10309395), (3, 6872930), (5, 4123758), (6, 3436465), (10, 2061879), (15, 1374586), (17, 1212870), (30, 687293), (34, 606435), (51, 404290), (85, 242574), (102, 202145), (170, 121287), (255, 80858), (510, 40429)]