2019284920

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1\times {\mathrm{1259}}^1$

素因数の和:1768

約数の個数: 64

約数和(自身を含む): 4603586400

約数和(自身を除く): 2584301480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 397, 404, 505, 794, 808, 1010, 1259, 1588, 1985, 2020, 2518, 3176, 3970, 4040, 5036, 6295, 7940, 10072, 12590, 15880, 25180, 40097, 50360, 80194, 127159, 160388, 200485, 254318, 320776, 400970, 499823, 508636, 635795, 801940, 999646, 1017272, 1271590, 1603880, 1999292, 2499115, 2543180, 3998584, 4998230, 5086360, 9996460, 19992920, 50482123, 100964246, 201928492, 252410615, 403856984, 504821230, 1009642460, 2019284920]

約数ペア:

[(1, 2019284920), (2, 1009642460), (4, 504821230), (5, 403856984), (8, 252410615), (10, 201928492), (20, 100964246), (40, 50482123), (101, 19992920), (202, 9996460), (397, 5086360), (404, 4998230), (505, 3998584), (794, 2543180), (808, 2499115), (1010, 1999292), (1259, 1603880), (1588, 1271590), (1985, 1017272), (2020, 999646), (2518, 801940), (3176, 635795), (3970, 508636), (4040, 499823), (5036, 400970), (6295, 320776), (7940, 254318), (10072, 200485), (12590, 160388), (15880, 127159), (25180, 80194), (40097, 50360)]