25660040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{811}}^1$

素因数の和:942

約数の個数: 64

約数和(自身を含む): 66648960

約数和(自身を除く): 40988920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 113, 140, 226, 280, 452, 565, 791, 811, 904, 1130, 1582, 1622, 2260, 3164, 3244, 3955, 4055, 4520, 5677, 6328, 6488, 7910, 8110, 11354, 15820, 16220, 22708, 28385, 31640, 32440, 45416, 56770, 91643, 113540, 183286, 227080, 366572, 458215, 641501, 733144, 916430, 1283002, 1832860, 2566004, 3207505, 3665720, 5132008, 6415010, 12830020, 25660040]

約数ペア:

[(1, 25660040), (2, 12830020), (4, 6415010), (5, 5132008), (7, 3665720), (8, 3207505), (10, 2566004), (14, 1832860), (20, 1283002), (28, 916430), (35, 733144), (40, 641501), (56, 458215), (70, 366572), (113, 227080), (140, 183286), (226, 113540), (280, 91643), (452, 56770), (565, 45416), (791, 32440), (811, 31640), (904, 28385), (1130, 22708), (1582, 16220), (1622, 15820), (2260, 11354), (3164, 8110), (3244, 7910), (3955, 6488), (4055, 6328), (4520, 5677)]