278889130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{25847}}^1$

素因数の和:25950

約数の個数: 32

約数和(自身を含む): 547150464

約数和(自身を除く): 268261334

約数列:

[1, 2, 5, 10, 13, 26, 65, 83, 130, 166, 415, 830, 1079, 2158, 5395, 10790, 25847, 51694, 129235, 258470, 336011, 672022, 1680055, 2145301, 3360110, 4290602, 10726505, 21453010, 27888913, 55777826, 139444565, 278889130]

約数ペア:

[(1, 278889130), (2, 139444565), (5, 55777826), (10, 27888913), (13, 21453010), (26, 10726505), (65, 4290602), (83, 3360110), (130, 2145301), (166, 1680055), (415, 672022), (830, 336011), (1079, 258470), (2158, 129235), (5395, 51694), (10790, 25847)]