129853900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1217}}^1$

素因数の和:1339

約数の個数: 72

約数和(自身を含む): 310823856

約数和(自身を除く): 180969956

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 97, 100, 110, 194, 220, 275, 388, 485, 550, 970, 1067, 1100, 1217, 1940, 2134, 2425, 2434, 4268, 4850, 4868, 5335, 6085, 9700, 10670, 12170, 13387, 21340, 24340, 26675, 26774, 30425, 53350, 53548, 60850, 66935, 106700, 118049, 121700, 133870, 236098, 267740, 334675, 472196, 590245, 669350, 1180490, 1298539, 1338700, 2360980, 2597078, 2951225, 5194156, 5902450, 6492695, 11804900, 12985390, 25970780, 32463475, 64926950, 129853900]

約数ペア:

[(1, 129853900), (2, 64926950), (4, 32463475), (5, 25970780), (10, 12985390), (11, 11804900), (20, 6492695), (22, 5902450), (25, 5194156), (44, 2951225), (50, 2597078), (55, 2360980), (97, 1338700), (100, 1298539), (110, 1180490), (194, 669350), (220, 590245), (275, 472196), (388, 334675), (485, 267740), (550, 236098), (970, 133870), (1067, 121700), (1100, 118049), (1217, 106700), (1940, 66935), (2134, 60850), (2425, 53548), (2434, 53350), (4268, 30425), (4850, 26774), (4868, 26675), (5335, 24340), (6085, 21340), (9700, 13387), (10670, 12170)]