8315840

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2029

約数の個数: 56

約数和(自身を含む): 21336000

約数和(自身を除く): 13020160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 1999, 2080, 3998, 4160, 7996, 9995, 15992, 19990, 25987, 31984, 39980, 51974, 63968, 79960, 103948, 127936, 129935, 159920, 207896, 259870, 319840, 415792, 519740, 639680, 831584, 1039480, 1663168, 2078960, 4157920, 8315840]

約数ペア:

[(1, 8315840), (2, 4157920), (4, 2078960), (5, 1663168), (8, 1039480), (10, 831584), (13, 639680), (16, 519740), (20, 415792), (26, 319840), (32, 259870), (40, 207896), (52, 159920), (64, 129935), (65, 127936), (80, 103948), (104, 79960), (130, 63968), (160, 51974), (208, 39980), (260, 31984), (320, 25987), (416, 19990), (520, 15992), (832, 9995), (1040, 7996), (1999, 4160), (2080, 3998)]