399242072

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{28211}}^1$

素因数の和:28307

約数の個数: 32

約数和(自身を含む): 787114800

約数和(自身を除く): 387872728

約数列:

[1, 2, 4, 8, 29, 58, 61, 116, 122, 232, 244, 488, 1769, 3538, 7076, 14152, 28211, 56422, 112844, 225688, 818119, 1636238, 1720871, 3272476, 3441742, 6544952, 6883484, 13766968, 49905259, 99810518, 199621036, 399242072]

約数ペア:

[(1, 399242072), (2, 199621036), (4, 99810518), (8, 49905259), (29, 13766968), (58, 6883484), (61, 6544952), (116, 3441742), (122, 3272476), (232, 1720871), (244, 1636238), (488, 818119), (1769, 225688), (3538, 112844), (7076, 56422), (14152, 28211)]