20215043825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{13831}}^1$

素因数の和:14058

約数の個数: 48

約数和(自身を含む): 28094451840

約数和(自身を除く): 7879408015

約数列:

[1, 5, 17, 19, 25, 85, 95, 181, 323, 425, 475, 905, 1615, 3077, 3439, 4525, 8075, 13831, 15385, 17195, 58463, 69155, 76925, 85975, 235127, 262789, 292315, 345775, 1175635, 1313945, 1461575, 2503411, 4467413, 5878175, 6569725, 12517055, 22337065, 42557987, 47564809, 62585275, 111685325, 212789935, 237824045, 808601753, 1063949675, 1189120225, 4043008765, 20215043825]

約数ペア:

[(1, 20215043825), (5, 4043008765), (17, 1189120225), (19, 1063949675), (25, 808601753), (85, 237824045), (95, 212789935), (181, 111685325), (323, 62585275), (425, 47564809), (475, 42557987), (905, 22337065), (1615, 12517055), (3077, 6569725), (3439, 5878175), (4525, 4467413), (8075, 2503411), (13831, 1461575), (15385, 1313945), (17195, 1175635), (58463, 345775), (69155, 292315), (76925, 262789), (85975, 235127)]