42698020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{15359}}^1$

素因数の和:15507

約数の個数: 24

約数和(自身を含む): 90316800

約数和(自身を除く): 47618780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 15359, 30718, 61436, 76795, 153590, 307180, 2134901, 4269802, 8539604, 10674505, 21349010, 42698020]

約数ペア:

[(1, 42698020), (2, 21349010), (4, 10674505), (5, 8539604), (10, 4269802), (20, 2134901), (139, 307180), (278, 153590), (556, 76795), (695, 61436), (1390, 30718), (2780, 15359)]