856881280

素因数分解:

$2^7\times 5^1\times {\mathrm{1338877}}^1$

素因数の和:1338896

約数の個数: 32

約数和(自身を含む): 2048483340

約数和(自身を除く): 1191602060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1338877, 2677754, 5355508, 6694385, 10711016, 13388770, 21422032, 26777540, 42844064, 53555080, 85688128, 107110160, 171376256, 214220320, 428440640, 856881280]

約数ペア:

[(1, 856881280), (2, 428440640), (4, 214220320), (5, 171376256), (8, 107110160), (10, 85688128), (16, 53555080), (20, 42844064), (32, 26777540), (40, 21422032), (64, 13388770), (80, 10711016), (128, 6694385), (160, 5355508), (320, 2677754), (640, 1338877)]