76720225

素因数分解:

$5^2\times {\mathrm{29}}^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:198

約数の個数: 36

約数和(自身を含む): 102063780

約数和(自身を除く): 25343555

約数列:

[1, 5, 25, 29, 41, 89, 145, 205, 445, 725, 841, 1025, 1189, 2225, 2581, 3649, 4205, 5945, 12905, 18245, 21025, 29725, 34481, 64525, 74849, 91225, 105821, 172405, 374245, 529105, 862025, 1871225, 2645525, 3068809, 15344045, 76720225]

約数ペア:

[(1, 76720225), (5, 15344045), (25, 3068809), (29, 2645525), (41, 1871225), (89, 862025), (145, 529105), (205, 374245), (445, 172405), (725, 105821), (841, 91225), (1025, 74849), (1189, 64525), (2225, 34481), (2581, 29725), (3649, 21025), (4205, 18245), (5945, 12905)]