4489000

素因数分解:

$2^3\times 5^3\times {\mathrm{67}}^2$

素因数の和:155

約数の個数: 48

約数和(自身を含む): 10663380

約数和(自身を除く): 6174380

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 67, 100, 125, 134, 200, 250, 268, 335, 500, 536, 670, 1000, 1340, 1675, 2680, 3350, 4489, 6700, 8375, 8978, 13400, 16750, 17956, 22445, 33500, 35912, 44890, 67000, 89780, 112225, 179560, 224450, 448900, 561125, 897800, 1122250, 2244500, 4489000]

約数ペア:

[(1, 4489000), (2, 2244500), (4, 1122250), (5, 897800), (8, 561125), (10, 448900), (20, 224450), (25, 179560), (40, 112225), (50, 89780), (67, 67000), (100, 44890), (125, 35912), (134, 33500), (200, 22445), (250, 17956), (268, 16750), (335, 13400), (500, 8978), (536, 8375), (670, 6700), (1000, 4489), (1340, 3350), (1675, 2680)]