898757620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{17713}}^1$

素因数の和:17824

約数の個数: 48

約数和(自身を含む): 1964128320

約数和(自身を除く): 1065370700

約数列:

[1, 2, 4, 5, 10, 20, 43, 59, 86, 118, 172, 215, 236, 295, 430, 590, 860, 1180, 2537, 5074, 10148, 12685, 17713, 25370, 35426, 50740, 70852, 88565, 177130, 354260, 761659, 1045067, 1523318, 2090134, 3046636, 3808295, 4180268, 5225335, 7616590, 10450670, 15233180, 20901340, 44937881, 89875762, 179751524, 224689405, 449378810, 898757620]

約数ペア:

[(1, 898757620), (2, 449378810), (4, 224689405), (5, 179751524), (10, 89875762), (20, 44937881), (43, 20901340), (59, 15233180), (86, 10450670), (118, 7616590), (172, 5225335), (215, 4180268), (236, 3808295), (295, 3046636), (430, 2090134), (590, 1523318), (860, 1045067), (1180, 761659), (2537, 354260), (5074, 177130), (10148, 88565), (12685, 70852), (17713, 50740), (25370, 35426)]