19538120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{69779}}^1$

素因数の和:69797

約数の個数: 32

約数和(自身を含む): 50241600

約数和(自身を除く): 30703480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 69779, 139558, 279116, 348895, 488453, 558232, 697790, 976906, 1395580, 1953812, 2442265, 2791160, 3907624, 4884530, 9769060, 19538120]

約数ペア:

[(1, 19538120), (2, 9769060), (4, 4884530), (5, 3907624), (7, 2791160), (8, 2442265), (10, 1953812), (14, 1395580), (20, 976906), (28, 697790), (35, 558232), (40, 488453), (56, 348895), (70, 279116), (140, 139558), (280, 69779)]