64001920

素因数分解:

$2^7\times 5^1\times {\mathrm{100003}}^1$

素因数の和:100022

約数の個数: 32

約数和(自身を含む): 153006120

約数和(自身を除く): 89004200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 100003, 200006, 400012, 500015, 800024, 1000030, 1600048, 2000060, 3200096, 4000120, 6400192, 8000240, 12800384, 16000480, 32000960, 64001920]

約数ペア:

[(1, 64001920), (2, 32000960), (4, 16000480), (5, 12800384), (8, 8000240), (10, 6400192), (16, 4000120), (20, 3200096), (32, 2000060), (40, 1600048), (64, 1000030), (80, 800024), (128, 500015), (160, 400012), (320, 200006), (640, 100003)]