66687500

素因数分解:

$2^2\times 5^6\times {\mathrm{11}}^1\times {\mathrm{97}}^1$

素因数の和:142

約数の個数: 84

約数和(自身を含む): 160779192

約数和(自身を除く): 94091692

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 97, 100, 110, 125, 194, 220, 250, 275, 388, 485, 500, 550, 625, 970, 1067, 1100, 1250, 1375, 1940, 2134, 2425, 2500, 2750, 3125, 4268, 4850, 5335, 5500, 6250, 6875, 9700, 10670, 12125, 12500, 13750, 15625, 21340, 24250, 26675, 27500, 31250, 34375, 48500, 53350, 60625, 62500, 68750, 106700, 121250, 133375, 137500, 171875, 242500, 266750, 303125, 343750, 533500, 606250, 666875, 687500, 1212500, 1333750, 1515625, 2667500, 3031250, 3334375, 6062500, 6668750, 13337500, 16671875, 33343750, 66687500]

約数ペア:

[(1, 66687500), (2, 33343750), (4, 16671875), (5, 13337500), (10, 6668750), (11, 6062500), (20, 3334375), (22, 3031250), (25, 2667500), (44, 1515625), (50, 1333750), (55, 1212500), (97, 687500), (100, 666875), (110, 606250), (125, 533500), (194, 343750), (220, 303125), (250, 266750), (275, 242500), (388, 171875), (485, 137500), (500, 133375), (550, 121250), (625, 106700), (970, 68750), (1067, 62500), (1100, 60625), (1250, 53350), (1375, 48500), (1940, 34375), (2134, 31250), (2425, 27500), (2500, 26675), (2750, 24250), (3125, 21340), (4268, 15625), (4850, 13750), (5335, 12500), (5500, 12125), (6250, 10670), (6875, 9700)]