90790720

素因数分解:

$2^6\times 5^1\times {\mathrm{283721}}^1$

素因数の和:283738

約数の個数: 28

約数和(自身を含む): 216196164

約数和(自身を除く): 125405444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 283721, 567442, 1134884, 1418605, 2269768, 2837210, 4539536, 5674420, 9079072, 11348840, 18158144, 22697680, 45395360, 90790720]

約数ペア:

[(1, 90790720), (2, 45395360), (4, 22697680), (5, 18158144), (8, 11348840), (10, 9079072), (16, 5674420), (20, 4539536), (32, 2837210), (40, 2269768), (64, 1418605), (80, 1134884), (160, 567442), (320, 283721)]