139982720

素因数分解:

$2^7\times 5^1\times {\mathrm{218723}}^1$

素因数の和:218742

約数の個数: 32

約数和(自身を含む): 334647720

約数和(自身を除く): 194665000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 218723, 437446, 874892, 1093615, 1749784, 2187230, 3499568, 4374460, 6999136, 8748920, 13998272, 17497840, 27996544, 34995680, 69991360, 139982720]

約数ペア:

[(1, 139982720), (2, 69991360), (4, 34995680), (5, 27996544), (8, 17497840), (10, 13998272), (16, 8748920), (20, 6999136), (32, 4374460), (40, 3499568), (64, 2187230), (80, 1749784), (128, 1093615), (160, 874892), (320, 437446), (640, 218723)]