20161491784

素因数分解:

$2^3\times 7^2\times {\mathrm{193}}^1\times {\mathrm{266489}}^1$

素因数の和:266702

約数の個数: 48

約数和(自身を含む): 44202696300

約数和(自身を除く): 24041204516

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 193, 196, 386, 392, 772, 1351, 1544, 2702, 5404, 9457, 10808, 18914, 37828, 75656, 266489, 532978, 1065956, 1865423, 2131912, 3730846, 7461692, 13057961, 14923384, 26115922, 51432377, 52231844, 102864754, 104463688, 205729508, 360026639, 411459016, 720053278, 1440106556, 2520186473, 2880213112, 5040372946, 10080745892, 20161491784]

約数ペア:

[(1, 20161491784), (2, 10080745892), (4, 5040372946), (7, 2880213112), (8, 2520186473), (14, 1440106556), (28, 720053278), (49, 411459016), (56, 360026639), (98, 205729508), (193, 104463688), (196, 102864754), (386, 52231844), (392, 51432377), (772, 26115922), (1351, 14923384), (1544, 13057961), (2702, 7461692), (5404, 3730846), (9457, 2131912), (10808, 1865423), (18914, 1065956), (37828, 532978), (75656, 266489)]