28696745

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3923}}^1$

素因数の和:3965

約数の個数: 32

約数和(自身を含む): 45204480

約数和(自身を除く): 16507735

約数列:

[1, 5, 7, 11, 19, 35, 55, 77, 95, 133, 209, 385, 665, 1045, 1463, 3923, 7315, 19615, 27461, 43153, 74537, 137305, 215765, 302071, 372685, 521759, 819907, 1510355, 2608795, 4099535, 5739349, 28696745]

約数ペア:

[(1, 28696745), (5, 5739349), (7, 4099535), (11, 2608795), (19, 1510355), (35, 819907), (55, 521759), (77, 372685), (95, 302071), (133, 215765), (209, 137305), (385, 74537), (665, 43153), (1045, 27461), (1463, 19615), (3923, 7315)]