81859220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6949}}^1$

素因数の和:7008

約数の個数: 48

約数和(自身を含む): 186816000

約数和(自身を除く): 104956780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2945, 5890, 6949, 11780, 13898, 27796, 34745, 69490, 132031, 138980, 215419, 264062, 430838, 528124, 660155, 861676, 1077095, 1320310, 2154190, 2640620, 4092961, 4308380, 8185922, 16371844, 20464805, 40929610, 81859220]

約数ペア:

[(1, 81859220), (2, 40929610), (4, 20464805), (5, 16371844), (10, 8185922), (19, 4308380), (20, 4092961), (31, 2640620), (38, 2154190), (62, 1320310), (76, 1077095), (95, 861676), (124, 660155), (155, 528124), (190, 430838), (310, 264062), (380, 215419), (589, 138980), (620, 132031), (1178, 69490), (2356, 34745), (2945, 27796), (5890, 13898), (6949, 11780)]