128514200

素因数分解:

$2^3\times 5^2\times {\mathrm{199}}^1\times {\mathrm{3229}}^1$

素因数の和:3444

約数の個数: 48

約数和(自身を含む): 300390000

約数和(自身を除く): 171875800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 199, 200, 398, 796, 995, 1592, 1990, 3229, 3980, 4975, 6458, 7960, 9950, 12916, 16145, 19900, 25832, 32290, 39800, 64580, 80725, 129160, 161450, 322900, 642571, 645800, 1285142, 2570284, 3212855, 5140568, 6425710, 12851420, 16064275, 25702840, 32128550, 64257100, 128514200]

約数ペア:

[(1, 128514200), (2, 64257100), (4, 32128550), (5, 25702840), (8, 16064275), (10, 12851420), (20, 6425710), (25, 5140568), (40, 3212855), (50, 2570284), (100, 1285142), (199, 645800), (200, 642571), (398, 322900), (796, 161450), (995, 129160), (1592, 80725), (1990, 64580), (3229, 39800), (3980, 32290), (4975, 25832), (6458, 19900), (7960, 16145), (9950, 12916)]