90120320

素因数分解:

$2^7\times 5^1\times {\mathrm{140813}}^1$

素因数の和:140832

約数の個数: 32

約数和(自身を含む): 215445420

約数和(自身を除く): 125325100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 140813, 281626, 563252, 704065, 1126504, 1408130, 2253008, 2816260, 4506016, 5632520, 9012032, 11265040, 18024064, 22530080, 45060160, 90120320]

約数ペア:

[(1, 90120320), (2, 45060160), (4, 22530080), (5, 18024064), (8, 11265040), (10, 9012032), (16, 5632520), (20, 4506016), (32, 2816260), (40, 2253008), (64, 1408130), (80, 1126504), (128, 704065), (160, 563252), (320, 281626), (640, 140813)]