131211800

素因数分解:

$2^3\times 5^2\times {\mathrm{307}}^1\times {\mathrm{2137}}^1$

素因数の和:2460

約数の個数: 48

約数和(自身を含む): 306204360

約数和(自身を除く): 174992560

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 307, 614, 1228, 1535, 2137, 2456, 3070, 4274, 6140, 7675, 8548, 10685, 12280, 15350, 17096, 21370, 30700, 42740, 53425, 61400, 85480, 106850, 213700, 427400, 656059, 1312118, 2624236, 3280295, 5248472, 6560590, 13121180, 16401475, 26242360, 32802950, 65605900, 131211800]

約数ペア:

[(1, 131211800), (2, 65605900), (4, 32802950), (5, 26242360), (8, 16401475), (10, 13121180), (20, 6560590), (25, 5248472), (40, 3280295), (50, 2624236), (100, 1312118), (200, 656059), (307, 427400), (614, 213700), (1228, 106850), (1535, 85480), (2137, 61400), (2456, 53425), (3070, 42740), (4274, 30700), (6140, 21370), (7675, 17096), (8548, 15350), (10685, 12280)]