81022970

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 96

約数和(自身を含む): 180124560

約数和(自身を除く): 99101590

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 41, 49, 70, 74, 82, 98, 109, 185, 205, 218, 245, 259, 287, 370, 410, 490, 518, 545, 574, 763, 1090, 1295, 1435, 1517, 1526, 1813, 2009, 2590, 2870, 3034, 3626, 3815, 4018, 4033, 4469, 5341, 7585, 7630, 8066, 8938, 9065, 10045, 10619, 10682, 15170, 18130, 20090, 20165, 21238, 22345, 26705, 28231, 31283, 40330, 44690, 53095, 53410, 56462, 62566, 74333, 106190, 141155, 148666, 156415, 165353, 197617, 218981, 282310, 312830, 330706, 371665, 395234, 437962, 743330, 826765, 988085, 1094905, 1157471, 1653530, 1976170, 2189810, 2314942, 5787355, 8102297, 11574710, 16204594, 40511485, 81022970]

約数ペア:

[(1, 81022970), (2, 40511485), (5, 16204594), (7, 11574710), (10, 8102297), (14, 5787355), (35, 2314942), (37, 2189810), (41, 1976170), (49, 1653530), (70, 1157471), (74, 1094905), (82, 988085), (98, 826765), (109, 743330), (185, 437962), (205, 395234), (218, 371665), (245, 330706), (259, 312830), (287, 282310), (370, 218981), (410, 197617), (490, 165353), (518, 156415), (545, 148666), (574, 141155), (763, 106190), (1090, 74333), (1295, 62566), (1435, 56462), (1517, 53410), (1526, 53095), (1813, 44690), (2009, 40330), (2590, 31283), (2870, 28231), (3034, 26705), (3626, 22345), (3815, 21238), (4018, 20165), (4033, 20090), (4469, 18130), (5341, 15170), (7585, 10682), (7630, 10619), (8066, 10045), (8938, 9065)]