55515025

素因数分解:

$5^2\times {\mathrm{41}}^2\times {\mathrm{1321}}^1$

素因数の和:1413

約数の個数: 18

約数和(自身を含む): 70611986

約数和(自身を除く): 15096961

約数列:

[1, 5, 25, 41, 205, 1025, 1321, 1681, 6605, 8405, 33025, 42025, 54161, 270805, 1354025, 2220601, 11103005, 55515025]

約数ペア:

[(1, 55515025), (5, 11103005), (25, 2220601), (41, 1354025), (205, 270805), (1025, 54161), (1321, 42025), (1681, 33025), (6605, 8405)]