42021400

素因数分解:

$2^3\times 5^2\times {\mathrm{163}}^1\times {\mathrm{1289}}^1$

素因数の和:1468

約数の個数: 48

約数和(自身を含む): 98375400

約数和(自身を除く): 56354000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 163, 200, 326, 652, 815, 1289, 1304, 1630, 2578, 3260, 4075, 5156, 6445, 6520, 8150, 10312, 12890, 16300, 25780, 32225, 32600, 51560, 64450, 128900, 210107, 257800, 420214, 840428, 1050535, 1680856, 2101070, 4202140, 5252675, 8404280, 10505350, 21010700, 42021400]

約数ペア:

[(1, 42021400), (2, 21010700), (4, 10505350), (5, 8404280), (8, 5252675), (10, 4202140), (20, 2101070), (25, 1680856), (40, 1050535), (50, 840428), (100, 420214), (163, 257800), (200, 210107), (326, 128900), (652, 64450), (815, 51560), (1289, 32600), (1304, 32225), (1630, 25780), (2578, 16300), (3260, 12890), (4075, 10312), (5156, 8150), (6445, 6520)]