80001328

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{31}}^2\times {\mathrm{43}}^1$

素因数の和:135

約数の個数: 90

約数和(自身を含む): 180142116

約数和(自身を除く): 100140788

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 43, 44, 62, 86, 88, 121, 124, 172, 176, 242, 248, 341, 344, 473, 484, 496, 682, 688, 946, 961, 968, 1333, 1364, 1892, 1922, 1936, 2666, 2728, 3751, 3784, 3844, 5203, 5332, 5456, 7502, 7568, 7688, 10406, 10571, 10664, 14663, 15004, 15376, 20812, 21142, 21328, 29326, 30008, 41323, 41624, 42284, 58652, 60016, 82646, 83248, 84568, 116281, 117304, 161293, 165292, 169136, 232562, 234608, 322586, 330584, 454553, 465124, 645172, 661168, 909106, 930248, 1290344, 1818212, 1860496, 2580688, 3636424, 5000083, 7272848, 10000166, 20000332, 40000664, 80001328]

約数ペア:

[(1, 80001328), (2, 40000664), (4, 20000332), (8, 10000166), (11, 7272848), (16, 5000083), (22, 3636424), (31, 2580688), (43, 1860496), (44, 1818212), (62, 1290344), (86, 930248), (88, 909106), (121, 661168), (124, 645172), (172, 465124), (176, 454553), (242, 330584), (248, 322586), (341, 234608), (344, 232562), (473, 169136), (484, 165292), (496, 161293), (682, 117304), (688, 116281), (946, 84568), (961, 83248), (968, 82646), (1333, 60016), (1364, 58652), (1892, 42284), (1922, 41624), (1936, 41323), (2666, 30008), (2728, 29326), (3751, 21328), (3784, 21142), (3844, 20812), (5203, 15376), (5332, 15004), (5456, 14663), (7502, 10664), (7568, 10571), (7688, 10406)]