20128726

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:324

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 13048874

約数列:

[1, 2, 23, 29, 46, 58, 79, 158, 191, 382, 667, 1334, 1817, 2291, 3634, 4393, 4582, 5539, 8786, 11078, 15089, 30178, 52693, 105386, 127397, 254794, 347047, 437581, 694094, 875162, 10064363, 20128726]

約数ペア:

[(1, 20128726), (2, 10064363), (23, 875162), (29, 694094), (46, 437581), (58, 347047), (79, 254794), (158, 127397), (191, 105386), (382, 52693), (667, 30178), (1334, 15089), (1817, 11078), (2291, 8786), (3634, 5539), (4393, 4582)]