247897665

素因数分解:

$3^5\times 5^1\times {\mathrm{373}}^1\times {\mathrm{547}}^1$

素因数の和:940

約数の個数: 48

約数和(自身を含む): 447615168

約数和(自身を除く): 199717503

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 373, 405, 547, 1119, 1215, 1641, 1865, 2735, 3357, 4923, 5595, 8205, 10071, 14769, 16785, 24615, 30213, 44307, 50355, 73845, 90639, 132921, 151065, 204031, 221535, 453195, 612093, 664605, 1020155, 1836279, 3060465, 5508837, 9181395, 16526511, 27544185, 49579533, 82632555, 247897665]

約数ペア:

[(1, 247897665), (3, 82632555), (5, 49579533), (9, 27544185), (15, 16526511), (27, 9181395), (45, 5508837), (81, 3060465), (135, 1836279), (243, 1020155), (373, 664605), (405, 612093), (547, 453195), (1119, 221535), (1215, 204031), (1641, 151065), (1865, 132921), (2735, 90639), (3357, 73845), (4923, 50355), (5595, 44307), (8205, 30213), (10071, 24615), (14769, 16785)]