397702906

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{81197}}^1$

素因数の和:81309

約数の個数: 16

約数和(自身を含む): 623600640

約数和(自身を除く): 225897734

約数列:

[1, 2, 31, 62, 79, 158, 2449, 4898, 81197, 162394, 2517107, 5034214, 6414563, 12829126, 198851453, 397702906]

約数ペア:

[(1, 397702906), (2, 198851453), (31, 12829126), (62, 6414563), (79, 5034214), (158, 2517107), (2449, 162394), (4898, 81197)]