20986800

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{17489}}^1$

素因数の和:17510

約数の個数: 60

約数和(自身を含む): 67231560

約数和(自身を除く): 46244760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 150, 200, 240, 300, 400, 600, 1200, 17489, 34978, 52467, 69956, 87445, 104934, 139912, 174890, 209868, 262335, 279824, 349780, 419736, 437225, 524670, 699560, 839472, 874450, 1049340, 1311675, 1399120, 1748900, 2098680, 2623350, 3497800, 4197360, 5246700, 6995600, 10493400, 20986800]

約数ペア:

[(1, 20986800), (2, 10493400), (3, 6995600), (4, 5246700), (5, 4197360), (6, 3497800), (8, 2623350), (10, 2098680), (12, 1748900), (15, 1399120), (16, 1311675), (20, 1049340), (24, 874450), (25, 839472), (30, 699560), (40, 524670), (48, 437225), (50, 419736), (60, 349780), (75, 279824), (80, 262335), (100, 209868), (120, 174890), (150, 139912), (200, 104934), (240, 87445), (300, 69956), (400, 52467), (600, 34978), (1200, 17489)]