8028640

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^2\times {\mathrm{139}}^1$

素因数の和:192

約数の個数: 72

約数和(自身を含む): 20162520

約数和(自身を除く): 12133880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 139, 152, 160, 190, 278, 304, 361, 380, 556, 608, 695, 722, 760, 1112, 1390, 1444, 1520, 1805, 2224, 2641, 2780, 2888, 3040, 3610, 4448, 5282, 5560, 5776, 7220, 10564, 11120, 11552, 13205, 14440, 21128, 22240, 26410, 28880, 42256, 50179, 52820, 57760, 84512, 100358, 105640, 200716, 211280, 250895, 401432, 422560, 501790, 802864, 1003580, 1605728, 2007160, 4014320, 8028640]

約数ペア:

[(1, 8028640), (2, 4014320), (4, 2007160), (5, 1605728), (8, 1003580), (10, 802864), (16, 501790), (19, 422560), (20, 401432), (32, 250895), (38, 211280), (40, 200716), (76, 105640), (80, 100358), (95, 84512), (139, 57760), (152, 52820), (160, 50179), (190, 42256), (278, 28880), (304, 26410), (361, 22240), (380, 21128), (556, 14440), (608, 13205), (695, 11552), (722, 11120), (760, 10564), (1112, 7220), (1390, 5776), (1444, 5560), (1520, 5282), (1805, 4448), (2224, 3610), (2641, 3040), (2780, 2888)]