87680575

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:507

約数の個数: 24

約数和(自身を含む): 111086640

約数和(自身を除く): 23406065

約数列:

[1, 5, 25, 89, 157, 251, 445, 785, 1255, 2225, 3925, 6275, 13973, 22339, 39407, 69865, 111695, 197035, 349325, 558475, 985175, 3507223, 17536115, 87680575]

約数ペア:

[(1, 87680575), (5, 17536115), (25, 3507223), (89, 985175), (157, 558475), (251, 349325), (445, 197035), (785, 111695), (1255, 69865), (2225, 39407), (3925, 22339), (6275, 13973)]