80520320

素因数分解:

$2^7\times 5^1\times {\mathrm{125813}}^1$

素因数の和:125832

約数の個数: 32

約数和(自身を含む): 192495420

約数和(自身を除く): 111975100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 125813, 251626, 503252, 629065, 1006504, 1258130, 2013008, 2516260, 4026016, 5032520, 8052032, 10065040, 16104064, 20130080, 40260160, 80520320]

約数ペア:

[(1, 80520320), (2, 40260160), (4, 20130080), (5, 16104064), (8, 10065040), (10, 8052032), (16, 5032520), (20, 4026016), (32, 2516260), (40, 2013008), (64, 1258130), (80, 1006504), (128, 629065), (160, 503252), (320, 251626), (640, 125813)]