2000664520

素因数分解:

$2^3\times 5^1\times {\mathrm{1229}}^1\times {\mathrm{40697}}^1$

素因数の和:41937

約数の個数: 32

約数和(自身を含む): 4505268600

約数和(自身を除く): 2504604080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1229, 2458, 4916, 6145, 9832, 12290, 24580, 40697, 49160, 81394, 162788, 203485, 325576, 406970, 813940, 1627880, 50016613, 100033226, 200066452, 250083065, 400132904, 500166130, 1000332260, 2000664520]

約数ペア:

[(1, 2000664520), (2, 1000332260), (4, 500166130), (5, 400132904), (8, 250083065), (10, 200066452), (20, 100033226), (40, 50016613), (1229, 1627880), (2458, 813940), (4916, 406970), (6145, 325576), (9832, 203485), (12290, 162788), (24580, 81394), (40697, 49160)]