20263480

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7561}}^1$

素因数の和:7639

約数の個数: 32

約数和(自身を含む): 46279440

約数和(自身を除く): 26015960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 7561, 15122, 30244, 37805, 60488, 75610, 151220, 302440, 506587, 1013174, 2026348, 2532935, 4052696, 5065870, 10131740, 20263480]

約数ペア:

[(1, 20263480), (2, 10131740), (4, 5065870), (5, 4052696), (8, 2532935), (10, 2026348), (20, 1013174), (40, 506587), (67, 302440), (134, 151220), (268, 75610), (335, 60488), (536, 37805), (670, 30244), (1340, 15122), (2680, 7561)]