640479252

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{331511}}^1$

素因数の和:331548

約数の個数: 48

約数和(自身を含む): 1782208512

約数和(自身を除く): 1141729260

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 69, 84, 92, 138, 161, 276, 322, 483, 644, 966, 1932, 331511, 663022, 994533, 1326044, 1989066, 2320577, 3978132, 4641154, 6961731, 7624753, 9282308, 13923462, 15249506, 22874259, 27846924, 30499012, 45748518, 53373271, 91497036, 106746542, 160119813, 213493084, 320239626, 640479252]

約数ペア:

[(1, 640479252), (2, 320239626), (3, 213493084), (4, 160119813), (6, 106746542), (7, 91497036), (12, 53373271), (14, 45748518), (21, 30499012), (23, 27846924), (28, 22874259), (42, 15249506), (46, 13923462), (69, 9282308), (84, 7624753), (92, 6961731), (138, 4641154), (161, 3978132), (276, 2320577), (322, 1989066), (483, 1326044), (644, 994533), (966, 663022), (1932, 331511)]