399333568

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{467}}^1$

素因数の和:941

約数の個数: 56

約数和(自身を含む): 821643264

約数和(自身を除く): 422309696

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 248, 431, 467, 496, 862, 934, 992, 1724, 1868, 1984, 3448, 3736, 6896, 7472, 13361, 13792, 14477, 14944, 26722, 27584, 28954, 29888, 53444, 57908, 106888, 115816, 201277, 213776, 231632, 402554, 427552, 463264, 805108, 855104, 926528, 1610216, 3220432, 6239587, 6440864, 12479174, 12881728, 24958348, 49916696, 99833392, 199666784, 399333568]

約数ペア:

[(1, 399333568), (2, 199666784), (4, 99833392), (8, 49916696), (16, 24958348), (31, 12881728), (32, 12479174), (62, 6440864), (64, 6239587), (124, 3220432), (248, 1610216), (431, 926528), (467, 855104), (496, 805108), (862, 463264), (934, 427552), (992, 402554), (1724, 231632), (1868, 213776), (1984, 201277), (3448, 115816), (3736, 106888), (6896, 57908), (7472, 53444), (13361, 29888), (13792, 28954), (14477, 27584), (14944, 26722)]