18208480

素因数分解:

$2^5\times 5^1\times {\mathrm{317}}^1\times {\mathrm{359}}^1$

素因数の和:691

約数の個数: 48

約数和(自身を含む): 43273440

約数和(自身を除く): 25064960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 317, 359, 634, 718, 1268, 1436, 1585, 1795, 2536, 2872, 3170, 3590, 5072, 5744, 6340, 7180, 10144, 11488, 12680, 14360, 25360, 28720, 50720, 57440, 113803, 227606, 455212, 569015, 910424, 1138030, 1820848, 2276060, 3641696, 4552120, 9104240, 18208480]

約数ペア:

[(1, 18208480), (2, 9104240), (4, 4552120), (5, 3641696), (8, 2276060), (10, 1820848), (16, 1138030), (20, 910424), (32, 569015), (40, 455212), (80, 227606), (160, 113803), (317, 57440), (359, 50720), (634, 28720), (718, 25360), (1268, 14360), (1436, 12680), (1585, 11488), (1795, 10144), (2536, 7180), (2872, 6340), (3170, 5744), (3590, 5072)]