28988740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{337}}^1$

素因数の和:397

約数の個数: 96

約数和(自身を含む): 73592064

約数和(自身を除く): 44603324

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 23, 34, 44, 46, 55, 68, 85, 92, 110, 115, 170, 187, 220, 230, 253, 337, 340, 374, 391, 460, 506, 674, 748, 782, 935, 1012, 1265, 1348, 1564, 1685, 1870, 1955, 2530, 3370, 3707, 3740, 3910, 4301, 5060, 5729, 6740, 7414, 7751, 7820, 8602, 11458, 14828, 15502, 17204, 18535, 21505, 22916, 28645, 31004, 37070, 38755, 43010, 57290, 63019, 74140, 77510, 85261, 86020, 114580, 126038, 131767, 155020, 170522, 252076, 263534, 315095, 341044, 426305, 527068, 630190, 658835, 852610, 1260380, 1317670, 1449437, 1705220, 2635340, 2898874, 5797748, 7247185, 14494370, 28988740]

約数ペア:

[(1, 28988740), (2, 14494370), (4, 7247185), (5, 5797748), (10, 2898874), (11, 2635340), (17, 1705220), (20, 1449437), (22, 1317670), (23, 1260380), (34, 852610), (44, 658835), (46, 630190), (55, 527068), (68, 426305), (85, 341044), (92, 315095), (110, 263534), (115, 252076), (170, 170522), (187, 155020), (220, 131767), (230, 126038), (253, 114580), (337, 86020), (340, 85261), (374, 77510), (391, 74140), (460, 63019), (506, 57290), (674, 43010), (748, 38755), (782, 37070), (935, 31004), (1012, 28645), (1265, 22916), (1348, 21505), (1564, 18535), (1685, 17204), (1870, 15502), (1955, 14828), (2530, 11458), (3370, 8602), (3707, 7820), (3740, 7751), (3910, 7414), (4301, 6740), (5060, 5729)]