217565000

素因数分解:

$2^3\times 5^4\times {\mathrm{53}}^1\times {\mathrm{821}}^1$

素因数の和:900

約数の個数: 80

約数和(自身を含む): 520005420

約数和(自身を除く): 302440420

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 106, 125, 200, 212, 250, 265, 424, 500, 530, 625, 821, 1000, 1060, 1250, 1325, 1642, 2120, 2500, 2650, 3284, 4105, 5000, 5300, 6568, 6625, 8210, 10600, 13250, 16420, 20525, 26500, 32840, 33125, 41050, 43513, 53000, 66250, 82100, 87026, 102625, 132500, 164200, 174052, 205250, 217565, 265000, 348104, 410500, 435130, 513125, 821000, 870260, 1026250, 1087825, 1740520, 2052500, 2175650, 4105000, 4351300, 5439125, 8702600, 10878250, 21756500, 27195625, 43513000, 54391250, 108782500, 217565000]

約数ペア:

[(1, 217565000), (2, 108782500), (4, 54391250), (5, 43513000), (8, 27195625), (10, 21756500), (20, 10878250), (25, 8702600), (40, 5439125), (50, 4351300), (53, 4105000), (100, 2175650), (106, 2052500), (125, 1740520), (200, 1087825), (212, 1026250), (250, 870260), (265, 821000), (424, 513125), (500, 435130), (530, 410500), (625, 348104), (821, 265000), (1000, 217565), (1060, 205250), (1250, 174052), (1325, 164200), (1642, 132500), (2120, 102625), (2500, 87026), (2650, 82100), (3284, 66250), (4105, 53000), (5000, 43513), (5300, 41050), (6568, 33125), (6625, 32840), (8210, 26500), (10600, 20525), (13250, 16420)]