2105675

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:84

約数の個数: 48

約数和(自身を含む): 3333120

約数和(自身を除く): 1227445

約数列:

[1, 5, 11, 13, 19, 25, 31, 55, 65, 95, 143, 155, 209, 247, 275, 325, 341, 403, 475, 589, 715, 775, 1045, 1235, 1705, 2015, 2717, 2945, 3575, 4433, 5225, 6175, 6479, 7657, 8525, 10075, 13585, 14725, 22165, 32395, 38285, 67925, 84227, 110825, 161975, 191425, 421135, 2105675]

約数ペア:

[(1, 2105675), (5, 421135), (11, 191425), (13, 161975), (19, 110825), (25, 84227), (31, 67925), (55, 38285), (65, 32395), (95, 22165), (143, 14725), (155, 13585), (209, 10075), (247, 8525), (275, 7657), (325, 6479), (341, 6175), (403, 5225), (475, 4433), (589, 3575), (715, 2945), (775, 2717), (1045, 2015), (1235, 1705)]