21553400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 55777680

約数和(自身を除く): 34224280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 97, 100, 101, 110, 194, 200, 202, 220, 275, 388, 404, 440, 485, 505, 550, 776, 808, 970, 1010, 1067, 1100, 1111, 1940, 2020, 2134, 2200, 2222, 2425, 2525, 3880, 4040, 4268, 4444, 4850, 5050, 5335, 5555, 8536, 8888, 9700, 9797, 10100, 10670, 11110, 19400, 19594, 20200, 21340, 22220, 26675, 27775, 39188, 42680, 44440, 48985, 53350, 55550, 78376, 97970, 106700, 107767, 111100, 195940, 213400, 215534, 222200, 244925, 391880, 431068, 489850, 538835, 862136, 979700, 1077670, 1959400, 2155340, 2694175, 4310680, 5388350, 10776700, 21553400]

約数ペア:

[(1, 21553400), (2, 10776700), (4, 5388350), (5, 4310680), (8, 2694175), (10, 2155340), (11, 1959400), (20, 1077670), (22, 979700), (25, 862136), (40, 538835), (44, 489850), (50, 431068), (55, 391880), (88, 244925), (97, 222200), (100, 215534), (101, 213400), (110, 195940), (194, 111100), (200, 107767), (202, 106700), (220, 97970), (275, 78376), (388, 55550), (404, 53350), (440, 48985), (485, 44440), (505, 42680), (550, 39188), (776, 27775), (808, 26675), (970, 22220), (1010, 21340), (1067, 20200), (1100, 19594), (1111, 19400), (1940, 11110), (2020, 10670), (2134, 10100), (2200, 9797), (2222, 9700), (2425, 8888), (2525, 8536), (3880, 5555), (4040, 5335), (4268, 5050), (4444, 4850)]