81882160

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{241}}^1$

素因数の和:422

約数の個数: 80

約数和(自身を含む): 198772992

約数和(自身を除く): 116890832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 137, 155, 241, 248, 274, 310, 482, 496, 548, 620, 685, 964, 1096, 1205, 1240, 1370, 1928, 2192, 2410, 2480, 2740, 3856, 4247, 4820, 5480, 7471, 8494, 9640, 10960, 14942, 16988, 19280, 21235, 29884, 33017, 33976, 37355, 42470, 59768, 66034, 67952, 74710, 84940, 119536, 132068, 149420, 165085, 169880, 264136, 298840, 330170, 339760, 528272, 597680, 660340, 1023527, 1320680, 2047054, 2641360, 4094108, 5117635, 8188216, 10235270, 16376432, 20470540, 40941080, 81882160]

約数ペア:

[(1, 81882160), (2, 40941080), (4, 20470540), (5, 16376432), (8, 10235270), (10, 8188216), (16, 5117635), (20, 4094108), (31, 2641360), (40, 2047054), (62, 1320680), (80, 1023527), (124, 660340), (137, 597680), (155, 528272), (241, 339760), (248, 330170), (274, 298840), (310, 264136), (482, 169880), (496, 165085), (548, 149420), (620, 132068), (685, 119536), (964, 84940), (1096, 74710), (1205, 67952), (1240, 66034), (1370, 59768), (1928, 42470), (2192, 37355), (2410, 33976), (2480, 33017), (2740, 29884), (3856, 21235), (4247, 19280), (4820, 16988), (5480, 14942), (7471, 10960), (8494, 9640)]