78228780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{186259}}^1$

素因数の和:186278

約数の個数: 48

約数和(自身を含む): 250333440

約数和(自身を除く): 172104660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 186259, 372518, 558777, 745036, 931295, 1117554, 1303813, 1862590, 2235108, 2607626, 2793885, 3725180, 3911439, 5215252, 5587770, 6519065, 7822878, 11175540, 13038130, 15645756, 19557195, 26076260, 39114390, 78228780]

約数ペア:

[(1, 78228780), (2, 39114390), (3, 26076260), (4, 19557195), (5, 15645756), (6, 13038130), (7, 11175540), (10, 7822878), (12, 6519065), (14, 5587770), (15, 5215252), (20, 3911439), (21, 3725180), (28, 2793885), (30, 2607626), (35, 2235108), (42, 1862590), (60, 1303813), (70, 1117554), (84, 931295), (105, 745036), (140, 558777), (210, 372518), (420, 186259)]