18921340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:175

約数の個数: 96

約数和(自身を含む): 46267200

約数和(自身を除く): 27345860

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 29, 34, 38, 58, 68, 76, 85, 95, 101, 116, 145, 170, 190, 202, 290, 323, 340, 380, 404, 493, 505, 551, 580, 646, 986, 1010, 1102, 1292, 1615, 1717, 1919, 1972, 2020, 2204, 2465, 2755, 2929, 3230, 3434, 3838, 4930, 5510, 5858, 6460, 6868, 7676, 8585, 9367, 9595, 9860, 11020, 11716, 14645, 17170, 18734, 19190, 29290, 32623, 34340, 37468, 38380, 46835, 49793, 55651, 58580, 65246, 93670, 99586, 111302, 130492, 163115, 187340, 199172, 222604, 248965, 278255, 326230, 497930, 556510, 652460, 946067, 995860, 1113020, 1892134, 3784268, 4730335, 9460670, 18921340]

約数ペア:

[(1, 18921340), (2, 9460670), (4, 4730335), (5, 3784268), (10, 1892134), (17, 1113020), (19, 995860), (20, 946067), (29, 652460), (34, 556510), (38, 497930), (58, 326230), (68, 278255), (76, 248965), (85, 222604), (95, 199172), (101, 187340), (116, 163115), (145, 130492), (170, 111302), (190, 99586), (202, 93670), (290, 65246), (323, 58580), (340, 55651), (380, 49793), (404, 46835), (493, 38380), (505, 37468), (551, 34340), (580, 32623), (646, 29290), (986, 19190), (1010, 18734), (1102, 17170), (1292, 14645), (1615, 11716), (1717, 11020), (1919, 9860), (1972, 9595), (2020, 9367), (2204, 8585), (2465, 7676), (2755, 6868), (2929, 6460), (3230, 5858), (3434, 5510), (3838, 4930)]