61638975

素因数分解:

$3^4\times 5^2\times {\mathrm{61}}^1\times {\mathrm{499}}^1$

素因数の和:582

約数の個数: 60

約数和(自身を含む): 116281000

約数和(自身を除く): 54642025

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 61, 75, 81, 135, 183, 225, 305, 405, 499, 549, 675, 915, 1497, 1525, 1647, 2025, 2495, 2745, 4491, 4575, 4941, 7485, 8235, 12475, 13473, 13725, 22455, 24705, 30439, 37425, 40419, 41175, 67365, 91317, 112275, 123525, 152195, 202095, 273951, 336825, 456585, 760975, 821853, 1010475, 1369755, 2282925, 2465559, 4109265, 6848775, 12327795, 20546325, 61638975]

約数ペア:

[(1, 61638975), (3, 20546325), (5, 12327795), (9, 6848775), (15, 4109265), (25, 2465559), (27, 2282925), (45, 1369755), (61, 1010475), (75, 821853), (81, 760975), (135, 456585), (183, 336825), (225, 273951), (305, 202095), (405, 152195), (499, 123525), (549, 112275), (675, 91317), (915, 67365), (1497, 41175), (1525, 40419), (1647, 37425), (2025, 30439), (2495, 24705), (2745, 22455), (4491, 13725), (4575, 13473), (4941, 12475), (7485, 8235)]