1285913816

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1\times {\mathrm{337}}^1$

素因数の和:816

約数の個数: 64

約数和(自身を含む): 2666252160

約数和(自身を除く): 1380338344

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 131, 262, 331, 337, 524, 662, 674, 1048, 1324, 1348, 1441, 2648, 2696, 2882, 3641, 3707, 5764, 7282, 7414, 11528, 14564, 14828, 29128, 29656, 43361, 44147, 86722, 88294, 111547, 173444, 176588, 223094, 346888, 353176, 446188, 476971, 485617, 892376, 953942, 971234, 1227017, 1907884, 1942468, 2454034, 3815768, 3884936, 4908068, 9816136, 14612657, 29225314, 58450628, 116901256, 160739227, 321478454, 642956908, 1285913816]

約数ペア:

[(1, 1285913816), (2, 642956908), (4, 321478454), (8, 160739227), (11, 116901256), (22, 58450628), (44, 29225314), (88, 14612657), (131, 9816136), (262, 4908068), (331, 3884936), (337, 3815768), (524, 2454034), (662, 1942468), (674, 1907884), (1048, 1227017), (1324, 971234), (1348, 953942), (1441, 892376), (2648, 485617), (2696, 476971), (2882, 446188), (3641, 353176), (3707, 346888), (5764, 223094), (7282, 176588), (7414, 173444), (11528, 111547), (14564, 88294), (14828, 86722), (29128, 44147), (29656, 43361)]