640886300

素因数分解:

$2^2\times 5^2\times {\mathrm{2137}}^1\times {\mathrm{2999}}^1$

素因数の和:5150

約数の個数: 36

約数和(自身を含む): 1391838000

約数和(自身を除く): 750951700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 2137, 2999, 4274, 5998, 8548, 10685, 11996, 14995, 21370, 29990, 42740, 53425, 59980, 74975, 106850, 149950, 213700, 299900, 6408863, 12817726, 25635452, 32044315, 64088630, 128177260, 160221575, 320443150, 640886300]

約数ペア:

[(1, 640886300), (2, 320443150), (4, 160221575), (5, 128177260), (10, 64088630), (20, 32044315), (25, 25635452), (50, 12817726), (100, 6408863), (2137, 299900), (2999, 213700), (4274, 149950), (5998, 106850), (8548, 74975), (10685, 59980), (11996, 53425), (14995, 42740), (21370, 29990)]