18970280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67751}}^1$

素因数の和:67769

約数の個数: 32

約数和(自身を含む): 48781440

約数和(自身を除く): 29811160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67751, 135502, 271004, 338755, 474257, 542008, 677510, 948514, 1355020, 1897028, 2371285, 2710040, 3794056, 4742570, 9485140, 18970280]

約数ペア:

[(1, 18970280), (2, 9485140), (4, 4742570), (5, 3794056), (7, 2710040), (8, 2371285), (10, 1897028), (14, 1355020), (20, 948514), (28, 677510), (35, 542008), (40, 474257), (56, 338755), (70, 271004), (140, 135502), (280, 67751)]