81679276

素因数分解:

$2^2\times 7^3\times {\mathrm{37}}^1\times {\mathrm{1609}}^1$

素因数の和:1671

約数の個数: 48

約数和(自身を含む): 171304000

約数和(自身を除く): 89624724

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 148, 196, 259, 343, 518, 686, 1036, 1372, 1609, 1813, 3218, 3626, 6436, 7252, 11263, 12691, 22526, 25382, 45052, 50764, 59533, 78841, 119066, 157682, 238132, 315364, 416731, 551887, 833462, 1103774, 1666924, 2207548, 2917117, 5834234, 11668468, 20419819, 40839638, 81679276]

約数ペア:

[(1, 81679276), (2, 40839638), (4, 20419819), (7, 11668468), (14, 5834234), (28, 2917117), (37, 2207548), (49, 1666924), (74, 1103774), (98, 833462), (148, 551887), (196, 416731), (259, 315364), (343, 238132), (518, 157682), (686, 119066), (1036, 78841), (1372, 59533), (1609, 50764), (1813, 45052), (3218, 25382), (3626, 22526), (6436, 12691), (7252, 11263)]