20786070520

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{439}}^1\times {\mathrm{20063}}^1$

素因数の和:20572

約数の個数: 64

約数和(自身を含む): 47672064000

約数和(自身を除く): 26885993480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 439, 472, 590, 878, 1180, 1756, 2195, 2360, 3512, 4390, 8780, 17560, 20063, 25901, 40126, 51802, 80252, 100315, 103604, 129505, 160504, 200630, 207208, 259010, 401260, 518020, 802520, 1036040, 1183717, 2367434, 4734868, 5918585, 8807657, 9469736, 11837170, 17615314, 23674340, 35230628, 44038285, 47348680, 70461256, 88076570, 176153140, 352306280, 519651763, 1039303526, 2078607052, 2598258815, 4157214104, 5196517630, 10393035260, 20786070520]

約数ペア:

[(1, 20786070520), (2, 10393035260), (4, 5196517630), (5, 4157214104), (8, 2598258815), (10, 2078607052), (20, 1039303526), (40, 519651763), (59, 352306280), (118, 176153140), (236, 88076570), (295, 70461256), (439, 47348680), (472, 44038285), (590, 35230628), (878, 23674340), (1180, 17615314), (1756, 11837170), (2195, 9469736), (2360, 8807657), (3512, 5918585), (4390, 4734868), (8780, 2367434), (17560, 1183717), (20063, 1036040), (25901, 802520), (40126, 518020), (51802, 401260), (80252, 259010), (100315, 207208), (103604, 200630), (129505, 160504)]