128047600

素因数分解:

$2^4\times 5^2\times {\mathrm{320119}}^1$

素因数の和:320137

約数の個数: 30

約数和(自身を含む): 307635320

約数和(自身を除く): 179587720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 320119, 640238, 1280476, 1600595, 2560952, 3201190, 5121904, 6402380, 8002975, 12804760, 16005950, 25609520, 32011900, 64023800, 128047600]

約数ペア:

[(1, 128047600), (2, 64023800), (4, 32011900), (5, 25609520), (8, 16005950), (10, 12804760), (16, 8002975), (20, 6402380), (25, 5121904), (40, 3201190), (50, 2560952), (80, 1600595), (100, 1280476), (200, 640238), (400, 320119)]