643275

素因数分解:

$3^3\times 5^2\times {\mathrm{953}}^1$

素因数の和:972

約数の個数: 24

約数和(自身を含む): 1182960

約数和(自身を除く): 539685

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 953, 2859, 4765, 8577, 14295, 23825, 25731, 42885, 71475, 128655, 214425, 643275]

約数ペア:

[(1, 643275), (3, 214425), (5, 128655), (9, 71475), (15, 42885), (25, 25731), (27, 23825), (45, 14295), (75, 8577), (135, 4765), (225, 2859), (675, 953)]