20177996972

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1\times {\mathrm{43441}}^1$

素因数の和:43818

約数の個数: 48

約数和(自身を含む): 41249742912

約数和(自身を除く): 21071745940

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 313, 371, 626, 742, 1252, 1484, 2191, 4382, 8764, 16589, 33178, 43441, 66356, 86882, 116123, 173764, 232246, 304087, 464492, 608174, 1216348, 2302373, 4604746, 9209492, 13597033, 16116611, 27194066, 32233222, 54388132, 64466444, 95179231, 190358462, 380716924, 720642749, 1441285498, 2882570996, 5044499243, 10088998486, 20177996972]

約数ペア:

[(1, 20177996972), (2, 10088998486), (4, 5044499243), (7, 2882570996), (14, 1441285498), (28, 720642749), (53, 380716924), (106, 190358462), (212, 95179231), (313, 64466444), (371, 54388132), (626, 32233222), (742, 27194066), (1252, 16116611), (1484, 13597033), (2191, 9209492), (4382, 4604746), (8764, 2302373), (16589, 1216348), (33178, 608174), (43441, 464492), (66356, 304087), (86882, 232246), (116123, 173764)]