20179125

素因数分解:

$3^4\times 5^3\times {\mathrm{1993}}^1$

素因数の和:2020

約数の個数: 40

約数和(自身を含む): 37638744

約数和(自身を除く): 17459619

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 375, 405, 675, 1125, 1993, 2025, 3375, 5979, 9965, 10125, 17937, 29895, 49825, 53811, 89685, 149475, 161433, 249125, 269055, 448425, 747375, 807165, 1345275, 2242125, 4035825, 6726375, 20179125]

約数ペア:

[(1, 20179125), (3, 6726375), (5, 4035825), (9, 2242125), (15, 1345275), (25, 807165), (27, 747375), (45, 448425), (75, 269055), (81, 249125), (125, 161433), (135, 149475), (225, 89685), (375, 53811), (405, 49825), (675, 29895), (1125, 17937), (1993, 10125), (2025, 9965), (3375, 5979)]