18458720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{16481}}^1$

素因数の和:16503

約数の個数: 48

約数和(自身を含む): 49841568

約数和(自身を除く): 31382848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 16481, 32962, 65924, 82405, 115367, 131848, 164810, 230734, 263696, 329620, 461468, 527392, 576835, 659240, 922936, 1153670, 1318480, 1845872, 2307340, 2636960, 3691744, 4614680, 9229360, 18458720]

約数ペア:

[(1, 18458720), (2, 9229360), (4, 4614680), (5, 3691744), (7, 2636960), (8, 2307340), (10, 1845872), (14, 1318480), (16, 1153670), (20, 922936), (28, 659240), (32, 576835), (35, 527392), (40, 461468), (56, 329620), (70, 263696), (80, 230734), (112, 164810), (140, 131848), (160, 115367), (224, 82405), (280, 65924), (560, 32962), (1120, 16481)]