2891001040

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{193}}^1\times {\mathrm{1657}}^1$

素因数の和:1976

約数の個数: 80

約数和(自身を含む): 6820309008

約数和(自身を除く): 3929307968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 193, 226, 386, 452, 565, 772, 904, 965, 1130, 1544, 1657, 1808, 1930, 2260, 3088, 3314, 3860, 4520, 6628, 7720, 8285, 9040, 13256, 15440, 16570, 21809, 26512, 33140, 43618, 66280, 87236, 109045, 132560, 174472, 187241, 218090, 319801, 348944, 374482, 436180, 639602, 748964, 872360, 936205, 1279204, 1497928, 1599005, 1744720, 1872410, 2558408, 2995856, 3198010, 3744820, 5116816, 6396020, 7489640, 12792040, 14979280, 25584080, 36137513, 72275026, 144550052, 180687565, 289100104, 361375130, 578200208, 722750260, 1445500520, 2891001040]

約数ペア:

[(1, 2891001040), (2, 1445500520), (4, 722750260), (5, 578200208), (8, 361375130), (10, 289100104), (16, 180687565), (20, 144550052), (40, 72275026), (80, 36137513), (113, 25584080), (193, 14979280), (226, 12792040), (386, 7489640), (452, 6396020), (565, 5116816), (772, 3744820), (904, 3198010), (965, 2995856), (1130, 2558408), (1544, 1872410), (1657, 1744720), (1808, 1599005), (1930, 1497928), (2260, 1279204), (3088, 936205), (3314, 872360), (3860, 748964), (4520, 639602), (6628, 436180), (7720, 374482), (8285, 348944), (9040, 319801), (13256, 218090), (15440, 187241), (16570, 174472), (21809, 132560), (26512, 109045), (33140, 87236), (43618, 66280)]