13318400

素因数分解:

$2^8\times 5^2\times {\mathrm{2081}}^1$

素因数の和:2107

約数の個数: 54

約数和(自身を含む): 32980962

約数和(自身を除く): 19662562

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 2081, 3200, 4162, 6400, 8324, 10405, 16648, 20810, 33296, 41620, 52025, 66592, 83240, 104050, 133184, 166480, 208100, 266368, 332960, 416200, 532736, 665920, 832400, 1331840, 1664800, 2663680, 3329600, 6659200, 13318400]

約数ペア:

[(1, 13318400), (2, 6659200), (4, 3329600), (5, 2663680), (8, 1664800), (10, 1331840), (16, 832400), (20, 665920), (25, 532736), (32, 416200), (40, 332960), (50, 266368), (64, 208100), (80, 166480), (100, 133184), (128, 104050), (160, 83240), (200, 66592), (256, 52025), (320, 41620), (400, 33296), (640, 20810), (800, 16648), (1280, 10405), (1600, 8324), (2081, 6400), (3200, 4162)]