278747846

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4871}}^1$

素因数の和:4988

約数の個数: 32

約数和(自身を含む): 471453696

約数和(自身を除く): 192705850

約数列:

[1, 2, 13, 26, 31, 62, 71, 142, 403, 806, 923, 1846, 2201, 4402, 4871, 9742, 28613, 57226, 63323, 126646, 151001, 302002, 345841, 691682, 1963013, 3926026, 4495933, 8991866, 10721071, 21442142, 139373923, 278747846]

約数ペア:

[(1, 278747846), (2, 139373923), (13, 21442142), (26, 10721071), (31, 8991866), (62, 4495933), (71, 3926026), (142, 1963013), (403, 691682), (806, 345841), (923, 302002), (1846, 151001), (2201, 126646), (4402, 63323), (4871, 57226), (9742, 28613)]