28456480

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13681}}^1$

素因数の和:13709

約数の個数: 48

約数和(自身を含む): 72405144

約数和(自身を除く): 43948664

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 13681, 27362, 54724, 68405, 109448, 136810, 177853, 218896, 273620, 355706, 437792, 547240, 711412, 889265, 1094480, 1422824, 1778530, 2188960, 2845648, 3557060, 5691296, 7114120, 14228240, 28456480]

約数ペア:

[(1, 28456480), (2, 14228240), (4, 7114120), (5, 5691296), (8, 3557060), (10, 2845648), (13, 2188960), (16, 1778530), (20, 1422824), (26, 1094480), (32, 889265), (40, 711412), (52, 547240), (65, 437792), (80, 355706), (104, 273620), (130, 218896), (160, 177853), (208, 136810), (260, 109448), (416, 68405), (520, 54724), (1040, 27362), (2080, 13681)]