28394500

素因数分解:

$2^2\times 5^3\times {\mathrm{109}}^1\times {\mathrm{521}}^1$

素因数の和:649

約数の個数: 48

約数和(自身を含む): 62702640

約数和(自身を除く): 34308140

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 125, 218, 250, 436, 500, 521, 545, 1042, 1090, 2084, 2180, 2605, 2725, 5210, 5450, 10420, 10900, 13025, 13625, 26050, 27250, 52100, 54500, 56789, 65125, 113578, 130250, 227156, 260500, 283945, 567890, 1135780, 1419725, 2839450, 5678900, 7098625, 14197250, 28394500]

約数ペア:

[(1, 28394500), (2, 14197250), (4, 7098625), (5, 5678900), (10, 2839450), (20, 1419725), (25, 1135780), (50, 567890), (100, 283945), (109, 260500), (125, 227156), (218, 130250), (250, 113578), (436, 65125), (500, 56789), (521, 54500), (545, 52100), (1042, 27250), (1090, 26050), (2084, 13625), (2180, 13025), (2605, 10900), (2725, 10420), (5210, 5450)]