784064980

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{467}}^1\times {\mathrm{661}}^1$

素因数の和:1264

約数の個数: 48

約数和(自身を含む): 1665570816

約数和(自身を除く): 881505836

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 467, 508, 635, 661, 934, 1270, 1322, 1868, 2335, 2540, 2644, 3305, 4670, 6610, 9340, 13220, 59309, 83947, 118618, 167894, 237236, 296545, 308687, 335788, 419735, 593090, 617374, 839470, 1186180, 1234748, 1543435, 1678940, 3086870, 6173740, 39203249, 78406498, 156812996, 196016245, 392032490, 784064980]

約数ペア:

[(1, 784064980), (2, 392032490), (4, 196016245), (5, 156812996), (10, 78406498), (20, 39203249), (127, 6173740), (254, 3086870), (467, 1678940), (508, 1543435), (635, 1234748), (661, 1186180), (934, 839470), (1270, 617374), (1322, 593090), (1868, 419735), (2335, 335788), (2540, 308687), (2644, 296545), (3305, 237236), (4670, 167894), (6610, 118618), (9340, 83947), (13220, 59309)]