1991720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:158

約数の個数: 64

約数和(自身を含む): 4957200

約数和(自身を除く): 2965480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 34, 40, 58, 68, 85, 101, 116, 136, 145, 170, 202, 232, 290, 340, 404, 493, 505, 580, 680, 808, 986, 1010, 1160, 1717, 1972, 2020, 2465, 2929, 3434, 3944, 4040, 4930, 5858, 6868, 8585, 9860, 11716, 13736, 14645, 17170, 19720, 23432, 29290, 34340, 49793, 58580, 68680, 99586, 117160, 199172, 248965, 398344, 497930, 995860, 1991720]

約数ペア:

[(1, 1991720), (2, 995860), (4, 497930), (5, 398344), (8, 248965), (10, 199172), (17, 117160), (20, 99586), (29, 68680), (34, 58580), (40, 49793), (58, 34340), (68, 29290), (85, 23432), (101, 19720), (116, 17170), (136, 14645), (145, 13736), (170, 11716), (202, 9860), (232, 8585), (290, 6868), (340, 5858), (404, 4930), (493, 4040), (505, 3944), (580, 3434), (680, 2929), (808, 2465), (986, 2020), (1010, 1972), (1160, 1717)]