201995000

素因数分解:

$2^3\times 5^4\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:666

約数の個数: 80

約数和(自身を含む): 480783600

約数和(自身を除く): 278788600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 125, 142, 200, 250, 284, 355, 500, 568, 569, 625, 710, 1000, 1138, 1250, 1420, 1775, 2276, 2500, 2840, 2845, 3550, 4552, 5000, 5690, 7100, 8875, 11380, 14200, 14225, 17750, 22760, 28450, 35500, 40399, 44375, 56900, 71000, 71125, 80798, 88750, 113800, 142250, 161596, 177500, 201995, 284500, 323192, 355000, 355625, 403990, 569000, 711250, 807980, 1009975, 1422500, 1615960, 2019950, 2845000, 4039900, 5049875, 8079800, 10099750, 20199500, 25249375, 40399000, 50498750, 100997500, 201995000]

約数ペア:

[(1, 201995000), (2, 100997500), (4, 50498750), (5, 40399000), (8, 25249375), (10, 20199500), (20, 10099750), (25, 8079800), (40, 5049875), (50, 4039900), (71, 2845000), (100, 2019950), (125, 1615960), (142, 1422500), (200, 1009975), (250, 807980), (284, 711250), (355, 569000), (500, 403990), (568, 355625), (569, 355000), (625, 323192), (710, 284500), (1000, 201995), (1138, 177500), (1250, 161596), (1420, 142250), (1775, 113800), (2276, 88750), (2500, 80798), (2840, 71125), (2845, 71000), (3550, 56900), (4552, 44375), (5000, 40399), (5690, 35500), (7100, 28450), (8875, 22760), (11380, 17750), (14200, 14225)]