2018257520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1327801}}^1$

素因数の和:1327833

約数の個数: 40

約数和(自身を含む): 4939423440

約数和(自身を除く): 2921165920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 1327801, 2655602, 5311204, 6639005, 10622408, 13278010, 21244816, 25228219, 26556020, 50456438, 53112040, 100912876, 106224080, 126141095, 201825752, 252282190, 403651504, 504564380, 1009128760, 2018257520]

約数ペア:

[(1, 2018257520), (2, 1009128760), (4, 504564380), (5, 403651504), (8, 252282190), (10, 201825752), (16, 126141095), (19, 106224080), (20, 100912876), (38, 53112040), (40, 50456438), (76, 26556020), (80, 25228219), (95, 21244816), (152, 13278010), (190, 10622408), (304, 6639005), (380, 5311204), (760, 2655602), (1520, 1327801)]