25518680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{983}}^1$

素因数の和:1064

約数の個数: 64

約数和(自身を含む): 63763200

約数和(自身を除く): 38244520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 59, 88, 110, 118, 220, 236, 295, 440, 472, 590, 649, 983, 1180, 1298, 1966, 2360, 2596, 3245, 3932, 4915, 5192, 6490, 7864, 9830, 10813, 12980, 19660, 21626, 25960, 39320, 43252, 54065, 57997, 86504, 108130, 115994, 216260, 231988, 289985, 432520, 463976, 579970, 637967, 1159940, 1275934, 2319880, 2551868, 3189835, 5103736, 6379670, 12759340, 25518680]

約数ペア:

[(1, 25518680), (2, 12759340), (4, 6379670), (5, 5103736), (8, 3189835), (10, 2551868), (11, 2319880), (20, 1275934), (22, 1159940), (40, 637967), (44, 579970), (55, 463976), (59, 432520), (88, 289985), (110, 231988), (118, 216260), (220, 115994), (236, 108130), (295, 86504), (440, 57997), (472, 54065), (590, 43252), (649, 39320), (983, 25960), (1180, 21626), (1298, 19660), (1966, 12980), (2360, 10813), (2596, 9830), (3245, 7864), (3932, 6490), (4915, 5192)]