20565995548

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{708293}}^1$

素因数の和:708382

約数の個数: 48

約数和(自身を含む): 44265541824

約数和(自身を除く): 23699546276

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 61, 68, 119, 122, 238, 244, 427, 476, 854, 1037, 1708, 2074, 4148, 7259, 14518, 29036, 708293, 1416586, 2833172, 4958051, 9916102, 12040981, 19832204, 24081962, 43205873, 48163924, 84286867, 86411746, 168573734, 172823492, 302441111, 337147468, 604882222, 734499841, 1209764444, 1468999682, 2937999364, 5141498887, 10282997774, 20565995548]

約数ペア:

[(1, 20565995548), (2, 10282997774), (4, 5141498887), (7, 2937999364), (14, 1468999682), (17, 1209764444), (28, 734499841), (34, 604882222), (61, 337147468), (68, 302441111), (119, 172823492), (122, 168573734), (238, 86411746), (244, 84286867), (427, 48163924), (476, 43205873), (854, 24081962), (1037, 19832204), (1708, 12040981), (2074, 9916102), (4148, 4958051), (7259, 2833172), (14518, 1416586), (29036, 708293)]