19771330

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{863}}^1$

素因数の和:978

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 17553470

約数列:

[1, 2, 5, 10, 29, 58, 79, 145, 158, 290, 395, 790, 863, 1726, 2291, 4315, 4582, 8630, 11455, 22910, 25027, 50054, 68177, 125135, 136354, 250270, 340885, 681770, 1977133, 3954266, 9885665, 19771330]

約数ペア:

[(1, 19771330), (2, 9885665), (5, 3954266), (10, 1977133), (29, 681770), (58, 340885), (79, 250270), (145, 136354), (158, 125135), (290, 68177), (395, 50054), (790, 25027), (863, 22910), (1726, 11455), (2291, 8630), (4315, 4582)]