25519120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{617}}^1$

素因数の和:688

約数の個数: 80

約数和(自身を含む): 66210048

約数和(自身を除く): 40690928

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 47, 55, 80, 88, 94, 110, 176, 188, 220, 235, 376, 440, 470, 517, 617, 752, 880, 940, 1034, 1234, 1880, 2068, 2468, 2585, 3085, 3760, 4136, 4936, 5170, 6170, 6787, 8272, 9872, 10340, 12340, 13574, 20680, 24680, 27148, 28999, 33935, 41360, 49360, 54296, 57998, 67870, 108592, 115996, 135740, 144995, 231992, 271480, 289990, 318989, 463984, 542960, 579980, 637978, 1159960, 1275956, 1594945, 2319920, 2551912, 3189890, 5103824, 6379780, 12759560, 25519120]

約数ペア:

[(1, 25519120), (2, 12759560), (4, 6379780), (5, 5103824), (8, 3189890), (10, 2551912), (11, 2319920), (16, 1594945), (20, 1275956), (22, 1159960), (40, 637978), (44, 579980), (47, 542960), (55, 463984), (80, 318989), (88, 289990), (94, 271480), (110, 231992), (176, 144995), (188, 135740), (220, 115996), (235, 108592), (376, 67870), (440, 57998), (470, 54296), (517, 49360), (617, 41360), (752, 33935), (880, 28999), (940, 27148), (1034, 24680), (1234, 20680), (1880, 13574), (2068, 12340), (2468, 10340), (2585, 9872), (3085, 8272), (3760, 6787), (4136, 6170), (4936, 5170)]