20490384

素因数分解:

$2^4\times 3^1\times {\mathrm{157}}^1\times {\mathrm{2719}}^1$

素因数の和:2887

約数の個数: 40

約数和(自身を含む): 53290240

約数和(自身を除く): 32799856

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 157, 314, 471, 628, 942, 1256, 1884, 2512, 2719, 3768, 5438, 7536, 8157, 10876, 16314, 21752, 32628, 43504, 65256, 130512, 426883, 853766, 1280649, 1707532, 2561298, 3415064, 5122596, 6830128, 10245192, 20490384]

約数ペア:

[(1, 20490384), (2, 10245192), (3, 6830128), (4, 5122596), (6, 3415064), (8, 2561298), (12, 1707532), (16, 1280649), (24, 853766), (48, 426883), (157, 130512), (314, 65256), (471, 43504), (628, 32628), (942, 21752), (1256, 16314), (1884, 10876), (2512, 8157), (2719, 7536), (3768, 5438)]