25779104

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2053

約数の個数: 48

約数和(自身を含む): 56448000

約数和(自身を除く): 30668896

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 124, 208, 248, 403, 416, 496, 806, 992, 1612, 1999, 3224, 3998, 6448, 7996, 12896, 15992, 25987, 31984, 51974, 61969, 63968, 103948, 123938, 207896, 247876, 415792, 495752, 805597, 831584, 991504, 1611194, 1983008, 3222388, 6444776, 12889552, 25779104]

約数ペア:

[(1, 25779104), (2, 12889552), (4, 6444776), (8, 3222388), (13, 1983008), (16, 1611194), (26, 991504), (31, 831584), (32, 805597), (52, 495752), (62, 415792), (104, 247876), (124, 207896), (208, 123938), (248, 103948), (403, 63968), (416, 61969), (496, 51974), (806, 31984), (992, 25987), (1612, 15992), (1999, 12896), (3224, 7996), (3998, 6448)]