25395440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{449}}^1$

素因数の和:570

約数の個数: 80

約数和(自身を含む): 68299200

約数和(自身を除く): 42903760

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, 449, 505, 560, 707, 808, 898, 1010, 1414, 1616, 1796, 2020, 2245, 2828, 3143, 3535, 3592, 4040, 4490, 5656, 6286, 7070, 7184, 8080, 8980, 11312, 12572, 14140, 15715, 17960, 25144, 28280, 31430, 35920, 45349, 50288, 56560, 62860, 90698, 125720, 181396, 226745, 251440, 317443, 362792, 453490, 634886, 725584, 906980, 1269772, 1587215, 1813960, 2539544, 3174430, 3627920, 5079088, 6348860, 12697720, 25395440]

約数ペア:

[(1, 25395440), (2, 12697720), (4, 6348860), (5, 5079088), (7, 3627920), (8, 3174430), (10, 2539544), (14, 1813960), (16, 1587215), (20, 1269772), (28, 906980), (35, 725584), (40, 634886), (56, 453490), (70, 362792), (80, 317443), (101, 251440), (112, 226745), (140, 181396), (202, 125720), (280, 90698), (404, 62860), (449, 56560), (505, 50288), (560, 45349), (707, 35920), (808, 31430), (898, 28280), (1010, 25144), (1414, 17960), (1616, 15715), (1796, 14140), (2020, 12572), (2245, 11312), (2828, 8980), (3143, 8080), (3535, 7184), (3592, 7070), (4040, 6286), (4490, 5656)]