128954800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{24799}}^1$

素因数の和:24830

約数の個数: 60

約数和(自身を含む): 333659200

約数和(自身を除く): 204704400

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, 520, 650, 1040, 1300, 2600, 5200, 24799, 49598, 99196, 123995, 198392, 247990, 322387, 396784, 495980, 619975, 644774, 991960, 1239950, 1289548, 1611935, 1983920, 2479900, 2579096, 3223870, 4959800, 5158192, 6447740, 8059675, 9919600, 12895480, 16119350, 25790960, 32238700, 64477400, 128954800]

約数ペア:

[(1, 128954800), (2, 64477400), (4, 32238700), (5, 25790960), (8, 16119350), (10, 12895480), (13, 9919600), (16, 8059675), (20, 6447740), (25, 5158192), (26, 4959800), (40, 3223870), (50, 2579096), (52, 2479900), (65, 1983920), (80, 1611935), (100, 1289548), (104, 1239950), (130, 991960), (200, 644774), (208, 619975), (260, 495980), (325, 396784), (400, 322387), (520, 247990), (650, 198392), (1040, 123995), (1300, 99196), (2600, 49598), (5200, 24799)]