2161029025

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{23689}}^1$

素因数の和:23829

約数の個数: 24

約数和(自身を含む): 2775994200

約数和(自身を除く): 614965175

約数列:

[1, 5, 25, 41, 89, 205, 445, 1025, 2225, 3649, 18245, 23689, 91225, 118445, 592225, 971249, 2108321, 4856245, 10541605, 24281225, 52708025, 86441161, 432205805, 2161029025]

約数ペア:

[(1, 2161029025), (5, 432205805), (25, 86441161), (41, 52708025), (89, 24281225), (205, 10541605), (445, 4856245), (1025, 2108321), (2225, 971249), (3649, 592225), (18245, 118445), (23689, 91225)]