78445360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1103}}^1$

素因数の和:1250

約数の個数: 80

約数和(自身を含む): 210272256

約数和(自身を除く): 131826896

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 127, 140, 254, 280, 508, 560, 635, 889, 1016, 1103, 1270, 1778, 2032, 2206, 2540, 3556, 4412, 4445, 5080, 5515, 7112, 7721, 8824, 8890, 10160, 11030, 14224, 15442, 17648, 17780, 22060, 30884, 35560, 38605, 44120, 61768, 71120, 77210, 88240, 123536, 140081, 154420, 280162, 308840, 560324, 617680, 700405, 980567, 1120648, 1400810, 1961134, 2241296, 2801620, 3922268, 4902835, 5603240, 7844536, 9805670, 11206480, 15689072, 19611340, 39222680, 78445360]

約数ペア:

[(1, 78445360), (2, 39222680), (4, 19611340), (5, 15689072), (7, 11206480), (8, 9805670), (10, 7844536), (14, 5603240), (16, 4902835), (20, 3922268), (28, 2801620), (35, 2241296), (40, 1961134), (56, 1400810), (70, 1120648), (80, 980567), (112, 700405), (127, 617680), (140, 560324), (254, 308840), (280, 280162), (508, 154420), (560, 140081), (635, 123536), (889, 88240), (1016, 77210), (1103, 71120), (1270, 61768), (1778, 44120), (2032, 38605), (2206, 35560), (2540, 30884), (3556, 22060), (4412, 17780), (4445, 17648), (5080, 15442), (5515, 14224), (7112, 11030), (7721, 10160), (8824, 8890)]