319360

素因数分解:

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

素因数の和:518

約数の個数: 32

約数和(自身を含む): 765000

約数和(自身を除く): 445640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 499, 640, 998, 1996, 2495, 3992, 4990, 7984, 9980, 15968, 19960, 31936, 39920, 63872, 79840, 159680, 319360]

約数ペア:

[(1, 319360), (2, 159680), (4, 79840), (5, 63872), (8, 39920), (10, 31936), (16, 19960), (20, 15968), (32, 9980), (40, 7984), (64, 4990), (80, 3992), (128, 2495), (160, 1996), (320, 998), (499, 640)]