20490270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{40177}}^1$

素因数の和:40204

約数の個数: 32

約数和(自身を含む): 52070688

約数和(自身を除く): 31580418

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 40177, 80354, 120531, 200885, 241062, 401770, 602655, 683009, 1205310, 1366018, 2049027, 3415045, 4098054, 6830090, 10245135, 20490270]

約数ペア:

[(1, 20490270), (2, 10245135), (3, 6830090), (5, 4098054), (6, 3415045), (10, 2049027), (15, 1366018), (17, 1205310), (30, 683009), (34, 602655), (51, 401770), (85, 241062), (102, 200885), (170, 120531), (255, 80354), (510, 40177)]