61816820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{18289}}^1$

素因数の和:18324

約数の個数: 36

約数和(自身を含む): 140576940

約数和(自身を除く): 78760120

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 18289, 36578, 73156, 91445, 182890, 237757, 365780, 475514, 951028, 1188785, 2377570, 3090841, 4755140, 6181682, 12363364, 15454205, 30908410, 61816820]

約数ペア:

[(1, 61816820), (2, 30908410), (4, 15454205), (5, 12363364), (10, 6181682), (13, 4755140), (20, 3090841), (26, 2377570), (52, 1188785), (65, 951028), (130, 475514), (169, 365780), (260, 237757), (338, 182890), (676, 91445), (845, 73156), (1690, 36578), (3380, 18289)]