12939400

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{2087}}^1$

素因数の和:2134

約数の個数: 48

約数和(自身を含む): 31069440

約数和(自身を除く): 18130040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 2087, 3100, 4174, 6200, 8348, 10435, 16696, 20870, 41740, 52175, 64697, 83480, 104350, 129394, 208700, 258788, 323485, 417400, 517576, 646970, 1293940, 1617425, 2587880, 3234850, 6469700, 12939400]

約数ペア:

[(1, 12939400), (2, 6469700), (4, 3234850), (5, 2587880), (8, 1617425), (10, 1293940), (20, 646970), (25, 517576), (31, 417400), (40, 323485), (50, 258788), (62, 208700), (100, 129394), (124, 104350), (155, 83480), (200, 64697), (248, 52175), (310, 41740), (620, 20870), (775, 16696), (1240, 10435), (1550, 8348), (2087, 6200), (3100, 4174)]