199337500

素因数分解:

$2^2\times 5^5\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:497

約数の個数: 72

約数和(自身を含む): 448846272

約数和(自身を除く): 249508772

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 74, 100, 125, 148, 185, 250, 370, 431, 500, 625, 740, 862, 925, 1250, 1724, 1850, 2155, 2500, 3125, 3700, 4310, 4625, 6250, 8620, 9250, 10775, 12500, 15947, 18500, 21550, 23125, 31894, 43100, 46250, 53875, 63788, 79735, 92500, 107750, 115625, 159470, 215500, 231250, 269375, 318940, 398675, 462500, 538750, 797350, 1077500, 1346875, 1594700, 1993375, 2693750, 3986750, 5387500, 7973500, 9966875, 19933750, 39867500, 49834375, 99668750, 199337500]

約数ペア:

[(1, 199337500), (2, 99668750), (4, 49834375), (5, 39867500), (10, 19933750), (20, 9966875), (25, 7973500), (37, 5387500), (50, 3986750), (74, 2693750), (100, 1993375), (125, 1594700), (148, 1346875), (185, 1077500), (250, 797350), (370, 538750), (431, 462500), (500, 398675), (625, 318940), (740, 269375), (862, 231250), (925, 215500), (1250, 159470), (1724, 115625), (1850, 107750), (2155, 92500), (2500, 79735), (3125, 63788), (3700, 53875), (4310, 46250), (4625, 43100), (6250, 31894), (8620, 23125), (9250, 21550), (10775, 18500), (12500, 15947)]