71985825

素因数分解:

$3^2\times 5^2\times {\mathrm{319937}}^1$

素因数の和:319953

約数の個数: 18

約数和(自身を含む): 128935014

約数和(自身を除く): 56949189

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 319937, 959811, 1599685, 2879433, 4799055, 7998425, 14397165, 23995275, 71985825]

約数ペア:

[(1, 71985825), (3, 23995275), (5, 14397165), (9, 7998425), (15, 4799055), (25, 2879433), (45, 1599685), (75, 959811), (225, 319937)]