389611905

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{3709}}^1$

素因数の和:3913

約数の個数: 32

約数和(自身を含む): 641088000

約数和(自身を除く): 251476095

約数列:

[1, 3, 5, 15, 47, 141, 149, 235, 447, 705, 745, 2235, 3709, 7003, 11127, 18545, 21009, 35015, 55635, 105045, 174323, 522969, 552641, 871615, 1657923, 2614845, 2763205, 8289615, 25974127, 77922381, 129870635, 389611905]

約数ペア:

[(1, 389611905), (3, 129870635), (5, 77922381), (15, 25974127), (47, 8289615), (141, 2763205), (149, 2614845), (235, 1657923), (447, 871615), (705, 552641), (745, 522969), (2235, 174323), (3709, 105045), (7003, 55635), (11127, 35015), (18545, 21009)]