40940770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10159}}^1$

素因数の和:10210

約数の個数: 32

約数和(自身を含む): 81930240

約数和(自身を除く): 40989470

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 10159, 20318, 50795, 101590, 132067, 264134, 314929, 629858, 660335, 1320670, 1574645, 3149290, 4094077, 8188154, 20470385, 40940770]

約数ペア:

[(1, 40940770), (2, 20470385), (5, 8188154), (10, 4094077), (13, 3149290), (26, 1574645), (31, 1320670), (62, 660335), (65, 629858), (130, 314929), (155, 264134), (310, 132067), (403, 101590), (806, 50795), (2015, 20318), (4030, 10159)]