81218830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:302

約数の個数: 96

約数和(自身を含む): 188762112

約数和(自身を除く): 107543282

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 43, 55, 70, 77, 86, 110, 121, 154, 215, 223, 242, 301, 385, 430, 446, 473, 602, 605, 770, 847, 946, 1115, 1210, 1505, 1561, 1694, 2230, 2365, 2453, 3010, 3122, 3311, 4235, 4730, 4906, 5203, 6622, 7805, 8470, 9589, 10406, 12265, 15610, 16555, 17171, 19178, 24530, 26015, 26983, 33110, 34342, 36421, 47945, 52030, 53966, 67123, 72842, 85855, 95890, 105479, 134246, 134915, 171710, 182105, 188881, 210958, 269830, 335615, 364210, 377762, 527395, 671230, 738353, 944405, 1054790, 1160269, 1476706, 1888810, 2320538, 3691765, 5801345, 7383530, 8121883, 11602690, 16243766, 40609415, 81218830]

約数ペア:

[(1, 81218830), (2, 40609415), (5, 16243766), (7, 11602690), (10, 8121883), (11, 7383530), (14, 5801345), (22, 3691765), (35, 2320538), (43, 1888810), (55, 1476706), (70, 1160269), (77, 1054790), (86, 944405), (110, 738353), (121, 671230), (154, 527395), (215, 377762), (223, 364210), (242, 335615), (301, 269830), (385, 210958), (430, 188881), (446, 182105), (473, 171710), (602, 134915), (605, 134246), (770, 105479), (847, 95890), (946, 85855), (1115, 72842), (1210, 67123), (1505, 53966), (1561, 52030), (1694, 47945), (2230, 36421), (2365, 34342), (2453, 33110), (3010, 26983), (3122, 26015), (3311, 24530), (4235, 19178), (4730, 17171), (4906, 16555), (5203, 15610), (6622, 12265), (7805, 10406), (8470, 9589)]