20968360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{74887}}^1$

素因数の和:74905

約数の個数: 32

約数和(自身を含む): 53919360

約数和(自身を除く): 32951000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 74887, 149774, 299548, 374435, 524209, 599096, 748870, 1048418, 1497740, 2096836, 2621045, 2995480, 4193672, 5242090, 10484180, 20968360]

約数ペア:

[(1, 20968360), (2, 10484180), (4, 5242090), (5, 4193672), (7, 2995480), (8, 2621045), (10, 2096836), (14, 1497740), (20, 1048418), (28, 748870), (35, 599096), (40, 524209), (56, 374435), (70, 299548), (140, 149774), (280, 74887)]