21779500

素因数分解:

$2^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{1013}}^1$

素因数の和:1075

約数の個数: 48

約数和(自身を含む): 48720672

約数和(自身を除く): 26941172

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 430, 500, 860, 1013, 1075, 2026, 2150, 4052, 4300, 5065, 5375, 10130, 10750, 20260, 21500, 25325, 43559, 50650, 87118, 101300, 126625, 174236, 217795, 253250, 435590, 506500, 871180, 1088975, 2177950, 4355900, 5444875, 10889750, 21779500]

約数ペア:

[(1, 21779500), (2, 10889750), (4, 5444875), (5, 4355900), (10, 2177950), (20, 1088975), (25, 871180), (43, 506500), (50, 435590), (86, 253250), (100, 217795), (125, 174236), (172, 126625), (215, 101300), (250, 87118), (430, 50650), (500, 43559), (860, 25325), (1013, 21500), (1075, 20260), (2026, 10750), (2150, 10130), (4052, 5375), (4300, 5065)]