161775856

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:398

約数の個数: 80

約数和(自身を含む): 357120000

約数和(自身を除く): 195344144

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 124, 149, 176, 199, 248, 298, 341, 398, 496, 596, 682, 796, 1192, 1364, 1592, 1639, 2189, 2384, 2728, 3184, 3278, 4378, 4619, 5456, 6169, 6556, 8756, 9238, 12338, 13112, 17512, 18476, 24676, 26224, 29651, 35024, 36952, 49352, 50809, 59302, 67859, 73904, 98704, 101618, 118604, 135718, 203236, 237208, 271436, 326161, 406472, 474416, 542872, 652322, 812944, 919181, 1085744, 1304644, 1838362, 2609288, 3676724, 5218576, 7353448, 10110991, 14706896, 20221982, 40443964, 80887928, 161775856]

約数ペア:

[(1, 161775856), (2, 80887928), (4, 40443964), (8, 20221982), (11, 14706896), (16, 10110991), (22, 7353448), (31, 5218576), (44, 3676724), (62, 2609288), (88, 1838362), (124, 1304644), (149, 1085744), (176, 919181), (199, 812944), (248, 652322), (298, 542872), (341, 474416), (398, 406472), (496, 326161), (596, 271436), (682, 237208), (796, 203236), (1192, 135718), (1364, 118604), (1592, 101618), (1639, 98704), (2189, 73904), (2384, 67859), (2728, 59302), (3184, 50809), (3278, 49352), (4378, 36952), (4619, 35024), (5456, 29651), (6169, 26224), (6556, 24676), (8756, 18476), (9238, 17512), (12338, 13112)]