888978680

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{509}}^1\times {\mathrm{929}}^1$

素因数の和:1496

約数の個数: 64

約数和(自身を含む): 2048976000

約数和(自身を除く): 1159997320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 509, 929, 940, 1018, 1858, 1880, 2036, 2545, 3716, 4072, 4645, 5090, 7432, 9290, 10180, 18580, 20360, 23923, 37160, 43663, 47846, 87326, 95692, 119615, 174652, 191384, 218315, 239230, 349304, 436630, 472861, 478460, 873260, 945722, 956920, 1746520, 1891444, 2364305, 3782888, 4728610, 9457220, 18914440, 22224467, 44448934, 88897868, 111122335, 177795736, 222244670, 444489340, 888978680]

約数ペア:

[(1, 888978680), (2, 444489340), (4, 222244670), (5, 177795736), (8, 111122335), (10, 88897868), (20, 44448934), (40, 22224467), (47, 18914440), (94, 9457220), (188, 4728610), (235, 3782888), (376, 2364305), (470, 1891444), (509, 1746520), (929, 956920), (940, 945722), (1018, 873260), (1858, 478460), (1880, 472861), (2036, 436630), (2545, 349304), (3716, 239230), (4072, 218315), (4645, 191384), (5090, 174652), (7432, 119615), (9290, 95692), (10180, 87326), (18580, 47846), (20360, 43663), (23923, 37160)]