19155520

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1931}}^1$

素因数の和:1979

約数の個数: 56

約数和(自身を含む): 47109888

約数和(自身を除く): 27954368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1931, 1984, 2480, 3862, 4960, 7724, 9655, 9920, 15448, 19310, 30896, 38620, 59861, 61792, 77240, 119722, 123584, 154480, 239444, 299305, 308960, 478888, 598610, 617920, 957776, 1197220, 1915552, 2394440, 3831104, 4788880, 9577760, 19155520]

約数ペア:

[(1, 19155520), (2, 9577760), (4, 4788880), (5, 3831104), (8, 2394440), (10, 1915552), (16, 1197220), (20, 957776), (31, 617920), (32, 598610), (40, 478888), (62, 308960), (64, 299305), (80, 239444), (124, 154480), (155, 123584), (160, 119722), (248, 77240), (310, 61792), (320, 59861), (496, 38620), (620, 30896), (992, 19310), (1240, 15448), (1931, 9920), (1984, 9655), (2480, 7724), (3862, 4960)]