17818900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 42872256

約数和(自身を除く): 25053356

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 97, 100, 110, 167, 194, 220, 275, 334, 388, 485, 550, 668, 835, 970, 1067, 1100, 1670, 1837, 1940, 2134, 2425, 3340, 3674, 4175, 4268, 4850, 5335, 7348, 8350, 9185, 9700, 10670, 16199, 16700, 18370, 21340, 26675, 32398, 36740, 45925, 53350, 64796, 80995, 91850, 106700, 161990, 178189, 183700, 323980, 356378, 404975, 712756, 809950, 890945, 1619900, 1781890, 3563780, 4454725, 8909450, 17818900]

約数ペア:

[(1, 17818900), (2, 8909450), (4, 4454725), (5, 3563780), (10, 1781890), (11, 1619900), (20, 890945), (22, 809950), (25, 712756), (44, 404975), (50, 356378), (55, 323980), (97, 183700), (100, 178189), (110, 161990), (167, 106700), (194, 91850), (220, 80995), (275, 64796), (334, 53350), (388, 45925), (485, 36740), (550, 32398), (668, 26675), (835, 21340), (970, 18370), (1067, 16700), (1100, 16199), (1670, 10670), (1837, 9700), (1940, 9185), (2134, 8350), (2425, 7348), (3340, 5335), (3674, 4850), (4175, 4268)]