80377280

素因数分解:

$2^6\times 5^1\times {\mathrm{251179}}^1$

素因数の和:251196

約数の個数: 28

約数和(自身を含む): 191399160

約数和(自身を除く): 111021880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 251179, 502358, 1004716, 1255895, 2009432, 2511790, 4018864, 5023580, 8037728, 10047160, 16075456, 20094320, 40188640, 80377280]

約数ペア:

[(1, 80377280), (2, 40188640), (4, 20094320), (5, 16075456), (8, 10047160), (10, 8037728), (16, 5023580), (20, 4018864), (32, 2511790), (40, 2009432), (64, 1255895), (80, 1004716), (160, 502358), (320, 251179)]