21151036360

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2039}}^1\times {\mathrm{13649}}^1$

素因数の和:15718

約数の個数: 64

約数和(自身を含む): 50122800000

約数和(自身を除く): 28971763640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 2039, 4078, 8156, 10195, 13649, 16312, 20390, 27298, 38741, 40780, 54596, 68245, 77482, 81560, 109192, 136490, 154964, 193705, 259331, 272980, 309928, 387410, 518662, 545960, 774820, 1037324, 1296655, 1549640, 2074648, 2593310, 5186620, 10373240, 27830311, 55660622, 111321244, 139151555, 222642488, 278303110, 528775909, 556606220, 1057551818, 1113212440, 2115103636, 2643879545, 4230207272, 5287759090, 10575518180, 21151036360]

約数ペア:

[(1, 21151036360), (2, 10575518180), (4, 5287759090), (5, 4230207272), (8, 2643879545), (10, 2115103636), (19, 1113212440), (20, 1057551818), (38, 556606220), (40, 528775909), (76, 278303110), (95, 222642488), (152, 139151555), (190, 111321244), (380, 55660622), (760, 27830311), (2039, 10373240), (4078, 5186620), (8156, 2593310), (10195, 2074648), (13649, 1549640), (16312, 1296655), (20390, 1037324), (27298, 774820), (38741, 545960), (40780, 518662), (54596, 387410), (68245, 309928), (77482, 272980), (81560, 259331), (109192, 193705), (136490, 154964)]