20007904

素因数分解:

$2^5\times 7^1\times {\mathrm{179}}^1\times {\mathrm{499}}^1$

素因数の和:695

約数の個数: 48

約数和(自身を含む): 45360000

約数和(自身を除く): 25352096

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 179, 224, 358, 499, 716, 998, 1253, 1432, 1996, 2506, 2864, 3493, 3992, 5012, 5728, 6986, 7984, 10024, 13972, 15968, 20048, 27944, 40096, 55888, 89321, 111776, 178642, 357284, 625247, 714568, 1250494, 1429136, 2500988, 2858272, 5001976, 10003952, 20007904]

約数ペア:

[(1, 20007904), (2, 10003952), (4, 5001976), (7, 2858272), (8, 2500988), (14, 1429136), (16, 1250494), (28, 714568), (32, 625247), (56, 357284), (112, 178642), (179, 111776), (224, 89321), (358, 55888), (499, 40096), (716, 27944), (998, 20048), (1253, 15968), (1432, 13972), (1996, 10024), (2506, 7984), (2864, 6986), (3493, 5728), (3992, 5012)]