56781440

素因数分解:

$2^7\times 5^1\times {\mathrm{88721}}^1$

素因数の和:88740

約数の個数: 32

約数和(自身を含む): 135744660

約数和(自身を除く): 78963220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 88721, 177442, 354884, 443605, 709768, 887210, 1419536, 1774420, 2839072, 3548840, 5678144, 7097680, 11356288, 14195360, 28390720, 56781440]

約数ペア:

[(1, 56781440), (2, 28390720), (4, 14195360), (5, 11356288), (8, 7097680), (10, 5678144), (16, 3548840), (20, 2839072), (32, 1774420), (40, 1419536), (64, 887210), (80, 709768), (128, 443605), (160, 354884), (320, 177442), (640, 88721)]