1297731680

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{165527}}^1$

素因数の和:165556

約数の個数: 72

約数和(自身を含む): 3566466288

約数和(自身を除く): 2268734608

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 165527, 331054, 662108, 827635, 1158689, 1324216, 1655270, 2317378, 2648432, 3310540, 4634756, 5296864, 5793445, 6621080, 8110823, 9269512, 11586890, 13242160, 16221646, 18539024, 23173780, 26484320, 32443292, 37078048, 40554115, 46347560, 64886584, 81108230, 92695120, 129773168, 162216460, 185390240, 259546336, 324432920, 648865840, 1297731680]

約数ペア:

[(1, 1297731680), (2, 648865840), (4, 324432920), (5, 259546336), (7, 185390240), (8, 162216460), (10, 129773168), (14, 92695120), (16, 81108230), (20, 64886584), (28, 46347560), (32, 40554115), (35, 37078048), (40, 32443292), (49, 26484320), (56, 23173780), (70, 18539024), (80, 16221646), (98, 13242160), (112, 11586890), (140, 9269512), (160, 8110823), (196, 6621080), (224, 5793445), (245, 5296864), (280, 4634756), (392, 3310540), (490, 2648432), (560, 2317378), (784, 1655270), (980, 1324216), (1120, 1158689), (1568, 827635), (1960, 662108), (3920, 331054), (7840, 165527)]