51299920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{907}}^1$

素因数の和:1028

約数の個数: 80

約数和(自身を含む): 137812608

約数和(自身を除く): 86512688

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 101, 112, 140, 202, 280, 404, 505, 560, 707, 808, 907, 1010, 1414, 1616, 1814, 2020, 2828, 3535, 3628, 4040, 4535, 5656, 6349, 7070, 7256, 8080, 9070, 11312, 12698, 14140, 14512, 18140, 25396, 28280, 31745, 36280, 50792, 56560, 63490, 72560, 91607, 101584, 126980, 183214, 253960, 366428, 458035, 507920, 641249, 732856, 916070, 1282498, 1465712, 1832140, 2564996, 3206245, 3664280, 5129992, 6412490, 7328560, 10259984, 12824980, 25649960, 51299920]

約数ペア:

[(1, 51299920), (2, 25649960), (4, 12824980), (5, 10259984), (7, 7328560), (8, 6412490), (10, 5129992), (14, 3664280), (16, 3206245), (20, 2564996), (28, 1832140), (35, 1465712), (40, 1282498), (56, 916070), (70, 732856), (80, 641249), (101, 507920), (112, 458035), (140, 366428), (202, 253960), (280, 183214), (404, 126980), (505, 101584), (560, 91607), (707, 72560), (808, 63490), (907, 56560), (1010, 50792), (1414, 36280), (1616, 31745), (1814, 28280), (2020, 25396), (2828, 18140), (3535, 14512), (3628, 14140), (4040, 12698), (4535, 11312), (5656, 9070), (6349, 8080), (7070, 7256)]