71464855

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 115706880

約数和(自身を除く): 44242025

約数列:

[1, 5, 7, 11, 17, 35, 55, 61, 77, 85, 119, 179, 187, 305, 385, 427, 595, 671, 895, 935, 1037, 1253, 1309, 1969, 2135, 3043, 3355, 4697, 5185, 6265, 6545, 7259, 9845, 10919, 11407, 13783, 15215, 21301, 23485, 33473, 36295, 54595, 57035, 68915, 76433, 79849, 106505, 120109, 167365, 185623, 234311, 382165, 399245, 600545, 840763, 928115, 1171555, 1299361, 2041853, 4203815, 6496805, 10209265, 14292971, 71464855]

約数ペア:

[(1, 71464855), (5, 14292971), (7, 10209265), (11, 6496805), (17, 4203815), (35, 2041853), (55, 1299361), (61, 1171555), (77, 928115), (85, 840763), (119, 600545), (179, 399245), (187, 382165), (305, 234311), (385, 185623), (427, 167365), (595, 120109), (671, 106505), (895, 79849), (935, 76433), (1037, 68915), (1253, 57035), (1309, 54595), (1969, 36295), (2135, 33473), (3043, 23485), (3355, 21301), (4697, 15215), (5185, 13783), (6265, 11407), (6545, 10919), (7259, 9845)]