25740416

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:557

約数の個数: 64

約数和(自身を含む): 57120000

約数和(自身を除く): 31379584

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 403, 416, 496, 499, 806, 832, 992, 998, 1612, 1664, 1984, 1996, 3224, 3968, 3992, 6448, 6487, 7984, 12896, 12974, 15469, 15968, 25792, 25948, 30938, 31936, 51584, 51896, 61876, 63872, 103792, 123752, 201097, 207584, 247504, 402194, 415168, 495008, 804388, 830336, 990016, 1608776, 1980032, 3217552, 6435104, 12870208, 25740416]

約数ペア:

[(1, 25740416), (2, 12870208), (4, 6435104), (8, 3217552), (13, 1980032), (16, 1608776), (26, 990016), (31, 830336), (32, 804388), (52, 495008), (62, 415168), (64, 402194), (104, 247504), (124, 207584), (128, 201097), (208, 123752), (248, 103792), (403, 63872), (416, 61876), (496, 51896), (499, 51584), (806, 31936), (832, 30938), (992, 25948), (998, 25792), (1612, 15968), (1664, 15469), (1984, 12974), (1996, 12896), (3224, 7984), (3968, 6487), (3992, 6448)]