25489000

素因数分解:

$2^3\times 5^3\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:451

約数の個数: 64

約数和(自身を含む): 60652800

約数和(自身を除く): 35163800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 125, 142, 200, 250, 284, 355, 359, 500, 568, 710, 718, 1000, 1420, 1436, 1775, 1795, 2840, 2872, 3550, 3590, 7100, 7180, 8875, 8975, 14200, 14360, 17750, 17950, 25489, 35500, 35900, 44875, 50978, 71000, 71800, 89750, 101956, 127445, 179500, 203912, 254890, 359000, 509780, 637225, 1019560, 1274450, 2548900, 3186125, 5097800, 6372250, 12744500, 25489000]

約数ペア:

[(1, 25489000), (2, 12744500), (4, 6372250), (5, 5097800), (8, 3186125), (10, 2548900), (20, 1274450), (25, 1019560), (40, 637225), (50, 509780), (71, 359000), (100, 254890), (125, 203912), (142, 179500), (200, 127445), (250, 101956), (284, 89750), (355, 71800), (359, 71000), (500, 50978), (568, 44875), (710, 35900), (718, 35500), (1000, 25489), (1420, 17950), (1436, 17750), (1775, 14360), (1795, 14200), (2840, 8975), (2872, 8875), (3550, 7180), (3590, 7100)]