289749820

素因数分解:

$2^2\times 5^1\times {\mathrm{1163}}^1\times {\mathrm{12457}}^1$

素因数の和:13629

約数の個数: 24

約数和(自身を含む): 609046704

約数和(自身を除く): 319296884

約数列:

[1, 2, 4, 5, 10, 20, 1163, 2326, 4652, 5815, 11630, 12457, 23260, 24914, 49828, 62285, 124570, 249140, 14487491, 28974982, 57949964, 72437455, 144874910, 289749820]

約数ペア:

[(1, 289749820), (2, 144874910), (4, 72437455), (5, 57949964), (10, 28974982), (20, 14487491), (1163, 249140), (2326, 124570), (4652, 62285), (5815, 49828), (11630, 24914), (12457, 23260)]