397924865

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{27701}}^1$

素因数の和:27749

約数の個数: 24

約数和(自身を含む): 547502328

約数和(自身を除く): 149577463

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 845, 1105, 2873, 14365, 27701, 138505, 360113, 470917, 1800565, 2354585, 4681469, 6121921, 23407345, 30609605, 79584973, 397924865]

約数ペア:

[(1, 397924865), (5, 79584973), (13, 30609605), (17, 23407345), (65, 6121921), (85, 4681469), (169, 2354585), (221, 1800565), (845, 470917), (1105, 360113), (2873, 138505), (14365, 27701)]