28953815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{269}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 11481385

約数列:

[1, 5, 11, 19, 55, 95, 103, 209, 269, 515, 1045, 1133, 1345, 1957, 2959, 5111, 5665, 9785, 14795, 21527, 25555, 27707, 56221, 107635, 138535, 281105, 304777, 526433, 1523885, 2632165, 5790763, 28953815]

約数ペア:

[(1, 28953815), (5, 5790763), (11, 2632165), (19, 1523885), (55, 526433), (95, 304777), (103, 281105), (209, 138535), (269, 107635), (515, 56221), (1045, 27707), (1133, 25555), (1345, 21527), (1957, 14795), (2959, 9785), (5111, 5665)]