72705425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{641}}^1$

素因数の和:1013

約数の個数: 24

約数和(自身を含む): 97519800

約数和(自身を除く): 24814375

約数列:

[1, 5, 13, 25, 65, 325, 349, 641, 1745, 3205, 4537, 8333, 8725, 16025, 22685, 41665, 113425, 208325, 223709, 1118545, 2908217, 5592725, 14541085, 72705425]

約数ペア:

[(1, 72705425), (5, 14541085), (13, 5592725), (25, 2908217), (65, 1118545), (325, 223709), (349, 208325), (641, 113425), (1745, 41665), (3205, 22685), (4537, 16025), (8333, 8725)]