280905898

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{21143}}^1$

素因数の和:21238

約数の個数: 32

約数和(自身を含む): 525724416

約数和(自身を除く): 244818518

約数列:

[1, 2, 7, 13, 14, 26, 73, 91, 146, 182, 511, 949, 1022, 1898, 6643, 13286, 21143, 42286, 148001, 274859, 296002, 549718, 1543439, 1924013, 3086878, 3848026, 10804073, 20064707, 21608146, 40129414, 140452949, 280905898]

約数ペア:

[(1, 280905898), (2, 140452949), (7, 40129414), (13, 21608146), (14, 20064707), (26, 10804073), (73, 3848026), (91, 3086878), (146, 1924013), (182, 1543439), (511, 549718), (949, 296002), (1022, 274859), (1898, 148001), (6643, 42286), (13286, 21143)]