20530100

素因数分解:

$2^2\times 5^2\times {\mathrm{239}}^1\times {\mathrm{859}}^1$

素因数の和:1112

約数の個数: 36

約数和(自身を含む): 44788800

約数和(自身を除く): 24258700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 239, 478, 859, 956, 1195, 1718, 2390, 3436, 4295, 4780, 5975, 8590, 11950, 17180, 21475, 23900, 42950, 85900, 205301, 410602, 821204, 1026505, 2053010, 4106020, 5132525, 10265050, 20530100]

約数ペア:

[(1, 20530100), (2, 10265050), (4, 5132525), (5, 4106020), (10, 2053010), (20, 1026505), (25, 821204), (50, 410602), (100, 205301), (239, 85900), (478, 42950), (859, 23900), (956, 21475), (1195, 17180), (1718, 11950), (2390, 8590), (3436, 5975), (4295, 4780)]