420795

素因数分解:

$3^4\times 5^1\times {\mathrm{1039}}^1$

素因数の和:1056

約数の個数: 20

約数和(自身を含む): 755040

約数和(自身を除く): 334245

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1039, 3117, 5195, 9351, 15585, 28053, 46755, 84159, 140265, 420795]

約数ペア:

[(1, 420795), (3, 140265), (5, 84159), (9, 46755), (15, 28053), (27, 15585), (45, 9351), (81, 5195), (135, 3117), (405, 1039)]