7205355

素因数分解:

$3^4\times 5^1\times {\mathrm{17791}}^1$

素因数の和:17808

約数の個数: 20

約数和(自身を含む): 12916992

約数和(自身を除く): 5711637

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 17791, 53373, 88955, 160119, 266865, 480357, 800595, 1441071, 2401785, 7205355]

約数ペア:

[(1, 7205355), (3, 2401785), (5, 1441071), (9, 800595), (15, 480357), (27, 266865), (45, 160119), (81, 88955), (135, 53373), (405, 17791)]