81410960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1931}}^1$

素因数の和:1992

約数の個数: 80

約数和(自身を含む): 206986752

約数和(自身を除く): 125575792

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 248, 272, 310, 340, 496, 527, 620, 680, 1054, 1240, 1360, 1931, 2108, 2480, 2635, 3862, 4216, 5270, 7724, 8432, 9655, 10540, 15448, 19310, 21080, 30896, 32827, 38620, 42160, 59861, 65654, 77240, 119722, 131308, 154480, 164135, 239444, 262616, 299305, 328270, 478888, 525232, 598610, 656540, 957776, 1017637, 1197220, 1313080, 2035274, 2394440, 2626160, 4070548, 4788880, 5088185, 8141096, 10176370, 16282192, 20352740, 40705480, 81410960]

約数ペア:

[(1, 81410960), (2, 40705480), (4, 20352740), (5, 16282192), (8, 10176370), (10, 8141096), (16, 5088185), (17, 4788880), (20, 4070548), (31, 2626160), (34, 2394440), (40, 2035274), (62, 1313080), (68, 1197220), (80, 1017637), (85, 957776), (124, 656540), (136, 598610), (155, 525232), (170, 478888), (248, 328270), (272, 299305), (310, 262616), (340, 239444), (496, 164135), (527, 154480), (620, 131308), (680, 119722), (1054, 77240), (1240, 65654), (1360, 59861), (1931, 42160), (2108, 38620), (2480, 32827), (2635, 30896), (3862, 21080), (4216, 19310), (5270, 15448), (7724, 10540), (8432, 9655)]