81859460

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{1249}}^1$

素因数の和:1400

約数の個数: 48

約数和(自身を含む): 179550000

約数和(自身を除く): 97690540

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 113, 116, 145, 226, 290, 452, 565, 580, 1130, 1249, 2260, 2498, 3277, 4996, 6245, 6554, 12490, 13108, 16385, 24980, 32770, 36221, 65540, 72442, 141137, 144884, 181105, 282274, 362210, 564548, 705685, 724420, 1411370, 2822740, 4092973, 8185946, 16371892, 20464865, 40929730, 81859460]

約数ペア:

[(1, 81859460), (2, 40929730), (4, 20464865), (5, 16371892), (10, 8185946), (20, 4092973), (29, 2822740), (58, 1411370), (113, 724420), (116, 705685), (145, 564548), (226, 362210), (290, 282274), (452, 181105), (565, 144884), (580, 141137), (1130, 72442), (1249, 65540), (2260, 36221), (2498, 32770), (3277, 24980), (4996, 16385), (6245, 13108), (6554, 12490)]