20610850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{857}}^1$

素因数の和:919

約数の個数: 48

約数和(自身を含む): 42450408

約数和(自身を除く): 21839558

約数列:

[1, 2, 5, 10, 13, 25, 26, 37, 50, 65, 74, 130, 185, 325, 370, 481, 650, 857, 925, 962, 1714, 1850, 2405, 4285, 4810, 8570, 11141, 12025, 21425, 22282, 24050, 31709, 42850, 55705, 63418, 111410, 158545, 278525, 317090, 412217, 557050, 792725, 824434, 1585450, 2061085, 4122170, 10305425, 20610850]

約数ペア:

[(1, 20610850), (2, 10305425), (5, 4122170), (10, 2061085), (13, 1585450), (25, 824434), (26, 792725), (37, 557050), (50, 412217), (65, 317090), (74, 278525), (130, 158545), (185, 111410), (325, 63418), (370, 55705), (481, 42850), (650, 31709), (857, 24050), (925, 22282), (962, 21425), (1714, 12025), (1850, 11141), (2405, 8570), (4285, 4810)]