18814275

素因数分解:

$3^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:207

約数の個数: 72

約数和(自身を含む): 37011520

約数和(自身を除く): 18197245

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 81, 95, 135, 163, 171, 225, 243, 285, 405, 475, 489, 513, 675, 815, 855, 1215, 1425, 1467, 1539, 2025, 2445, 2565, 3097, 4075, 4275, 4401, 4617, 6075, 7335, 7695, 9291, 12225, 12825, 13203, 15485, 22005, 23085, 27873, 36675, 38475, 39609, 46455, 66015, 77425, 83619, 110025, 115425, 139365, 198045, 232275, 250857, 330075, 418095, 696825, 752571, 990225, 1254285, 2090475, 3762855, 6271425, 18814275]

約数ペア:

[(1, 18814275), (3, 6271425), (5, 3762855), (9, 2090475), (15, 1254285), (19, 990225), (25, 752571), (27, 696825), (45, 418095), (57, 330075), (75, 250857), (81, 232275), (95, 198045), (135, 139365), (163, 115425), (171, 110025), (225, 83619), (243, 77425), (285, 66015), (405, 46455), (475, 39609), (489, 38475), (513, 36675), (675, 27873), (815, 23085), (855, 22005), (1215, 15485), (1425, 13203), (1467, 12825), (1539, 12225), (2025, 9291), (2445, 7695), (2565, 7335), (3097, 6075), (4075, 4617), (4275, 4401)]