81768390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7993}}^1$

素因数の和:8045

約数の個数: 64

約数和(自身を含む): 221018112

約数和(自身を除く): 139249722

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 31, 33, 55, 62, 66, 93, 110, 155, 165, 186, 310, 330, 341, 465, 682, 930, 1023, 1705, 2046, 3410, 5115, 7993, 10230, 15986, 23979, 39965, 47958, 79930, 87923, 119895, 175846, 239790, 247783, 263769, 439615, 495566, 527538, 743349, 879230, 1238915, 1318845, 1486698, 2477830, 2637690, 2725613, 3716745, 5451226, 7433490, 8176839, 13628065, 16353678, 27256130, 40884195, 81768390]

約数ペア:

[(1, 81768390), (2, 40884195), (3, 27256130), (5, 16353678), (6, 13628065), (10, 8176839), (11, 7433490), (15, 5451226), (22, 3716745), (30, 2725613), (31, 2637690), (33, 2477830), (55, 1486698), (62, 1318845), (66, 1238915), (93, 879230), (110, 743349), (155, 527538), (165, 495566), (186, 439615), (310, 263769), (330, 247783), (341, 239790), (465, 175846), (682, 119895), (930, 87923), (1023, 79930), (1705, 47958), (2046, 39965), (3410, 23979), (5115, 15986), (7993, 10230)]