19326860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1087}}^1$

素因数の和:1230

約数の個数: 48

約数和(自身を含む): 46792704

約数和(自身を除く): 27465844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 635, 889, 1087, 1270, 1778, 2174, 2540, 3556, 4348, 4445, 5435, 7609, 8890, 10870, 15218, 17780, 21740, 30436, 38045, 76090, 138049, 152180, 276098, 552196, 690245, 966343, 1380490, 1932686, 2760980, 3865372, 4831715, 9663430, 19326860]

約数ペア:

[(1, 19326860), (2, 9663430), (4, 4831715), (5, 3865372), (7, 2760980), (10, 1932686), (14, 1380490), (20, 966343), (28, 690245), (35, 552196), (70, 276098), (127, 152180), (140, 138049), (254, 76090), (508, 38045), (635, 30436), (889, 21740), (1087, 17780), (1270, 15218), (1778, 10870), (2174, 8890), (2540, 7609), (3556, 5435), (4348, 4445)]