426440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1523}}^1$

素因数の和:1541

約数の個数: 32

約数和(自身を含む): 1097280

約数和(自身を除く): 670840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1523, 3046, 6092, 7615, 10661, 12184, 15230, 21322, 30460, 42644, 53305, 60920, 85288, 106610, 213220, 426440]

約数ペア:

[(1, 426440), (2, 213220), (4, 106610), (5, 85288), (7, 60920), (8, 53305), (10, 42644), (14, 30460), (20, 21322), (28, 15230), (35, 12184), (40, 10661), (56, 7615), (70, 6092), (140, 3046), (280, 1523)]