81095480

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{11719}}^1$

素因数の和:11903

約数の個数: 32

約数和(自身を含む): 183535200

約数和(自身を除く): 102439720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 11719, 23438, 46876, 58595, 93752, 117190, 234380, 468760, 2027387, 4054774, 8109548, 10136935, 16219096, 20273870, 40547740, 81095480]

約数ペア:

[(1, 81095480), (2, 40547740), (4, 20273870), (5, 16219096), (8, 10136935), (10, 8109548), (20, 4054774), (40, 2027387), (173, 468760), (346, 234380), (692, 117190), (865, 93752), (1384, 58595), (1730, 46876), (3460, 23438), (6920, 11719)]