390876800

素因数分解:

$2^7\times 5^2\times {\mathrm{122149}}^1$

素因数の和:122173

約数の個数: 48

約数和(自身を含む): 965595750

約数和(自身を除く): 574718950

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 122149, 244298, 488596, 610745, 977192, 1221490, 1954384, 2442980, 3053725, 3908768, 4885960, 6107450, 7817536, 9771920, 12214900, 15635072, 19543840, 24429800, 39087680, 48859600, 78175360, 97719200, 195438400, 390876800]

約数ペア:

[(1, 390876800), (2, 195438400), (4, 97719200), (5, 78175360), (8, 48859600), (10, 39087680), (16, 24429800), (20, 19543840), (25, 15635072), (32, 12214900), (40, 9771920), (50, 7817536), (64, 6107450), (80, 4885960), (100, 3908768), (128, 3053725), (160, 2442980), (200, 1954384), (320, 1221490), (400, 977192), (640, 610745), (800, 488596), (1600, 244298), (3200, 122149)]