20192655

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{331}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 38150784

約数和(自身を除く): 17958129

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 83, 105, 147, 245, 249, 331, 415, 581, 735, 993, 1245, 1655, 1743, 2317, 2905, 4067, 4965, 6951, 8715, 11585, 12201, 16219, 20335, 27473, 34755, 48657, 61005, 81095, 82419, 137365, 192311, 243285, 412095, 576933, 961555, 1346177, 2884665, 4038531, 6730885, 20192655]

約数ペア:

[(1, 20192655), (3, 6730885), (5, 4038531), (7, 2884665), (15, 1346177), (21, 961555), (35, 576933), (49, 412095), (83, 243285), (105, 192311), (147, 137365), (245, 82419), (249, 81095), (331, 61005), (415, 48657), (581, 34755), (735, 27473), (993, 20335), (1245, 16219), (1655, 12201), (1743, 11585), (2317, 8715), (2905, 6951), (4067, 4965)]