2126800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{409}}^1$

素因数の和:440

約数の個数: 60

約数和(自身を含む): 5516140

約数和(自身を除く): 3389340

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 409, 520, 650, 818, 1040, 1300, 1636, 2045, 2600, 3272, 4090, 5200, 5317, 6544, 8180, 10225, 10634, 16360, 20450, 21268, 26585, 32720, 40900, 42536, 53170, 81800, 85072, 106340, 132925, 163600, 212680, 265850, 425360, 531700, 1063400, 2126800]

約数ペア:

[(1, 2126800), (2, 1063400), (4, 531700), (5, 425360), (8, 265850), (10, 212680), (13, 163600), (16, 132925), (20, 106340), (25, 85072), (26, 81800), (40, 53170), (50, 42536), (52, 40900), (65, 32720), (80, 26585), (100, 21268), (104, 20450), (130, 16360), (200, 10634), (208, 10225), (260, 8180), (325, 6544), (400, 5317), (409, 5200), (520, 4090), (650, 3272), (818, 2600), (1040, 2045), (1300, 1636)]