131531478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{31817}}^1$

素因数の和:31888

約数の個数: 32

約数和(自身を含む): 288652896

約数和(自身を除く): 157121418

約数列:

[1, 2, 3, 6, 13, 26, 39, 53, 78, 106, 159, 318, 689, 1378, 2067, 4134, 31817, 63634, 95451, 190902, 413621, 827242, 1240863, 1686301, 2481726, 3372602, 5058903, 10117806, 21921913, 43843826, 65765739, 131531478]

約数ペア:

[(1, 131531478), (2, 65765739), (3, 43843826), (6, 21921913), (13, 10117806), (26, 5058903), (39, 3372602), (53, 2481726), (78, 1686301), (106, 1240863), (159, 827242), (318, 413621), (689, 190902), (1378, 95451), (2067, 63634), (4134, 31817)]