13306720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{109}}^2$

素因数の和:240

約数の個数: 72

約数和(自身を含む): 36260784

約数和(自身を除く): 22954064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 109, 112, 140, 160, 218, 224, 280, 436, 545, 560, 763, 872, 1090, 1120, 1526, 1744, 2180, 3052, 3488, 3815, 4360, 6104, 7630, 8720, 11881, 12208, 15260, 17440, 23762, 24416, 30520, 47524, 59405, 61040, 83167, 95048, 118810, 122080, 166334, 190096, 237620, 332668, 380192, 415835, 475240, 665336, 831670, 950480, 1330672, 1663340, 1900960, 2661344, 3326680, 6653360, 13306720]

約数ペア:

[(1, 13306720), (2, 6653360), (4, 3326680), (5, 2661344), (7, 1900960), (8, 1663340), (10, 1330672), (14, 950480), (16, 831670), (20, 665336), (28, 475240), (32, 415835), (35, 380192), (40, 332668), (56, 237620), (70, 190096), (80, 166334), (109, 122080), (112, 118810), (140, 95048), (160, 83167), (218, 61040), (224, 59405), (280, 47524), (436, 30520), (545, 24416), (560, 23762), (763, 17440), (872, 15260), (1090, 12208), (1120, 11881), (1526, 8720), (1744, 7630), (2180, 6104), (3052, 4360), (3488, 3815)]