16509025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{643}}^1$

素因数の和:745

約数の個数: 24

約数和(自身を含む): 22359680

約数和(自身を除く): 5850655

約数列:

[1, 5, 13, 25, 65, 79, 325, 395, 643, 1027, 1975, 3215, 5135, 8359, 16075, 25675, 41795, 50797, 208975, 253985, 660361, 1269925, 3301805, 16509025]

約数ペア:

[(1, 16509025), (5, 3301805), (13, 1269925), (25, 660361), (65, 253985), (79, 208975), (325, 50797), (395, 41795), (643, 25675), (1027, 16075), (1975, 8359), (3215, 5135)]