9780781604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{45673}}^1$

素因数の和:45876

約数の個数: 48

約数和(自身を含む): 19397930496

約数和(自身を除く): 9617148892

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 157, 314, 341, 628, 682, 1364, 1727, 3454, 4867, 6908, 9734, 19468, 45673, 53537, 91346, 107074, 182692, 214148, 502403, 1004806, 1415863, 2009612, 2831726, 5663452, 7170661, 14341322, 15574493, 28682644, 31148986, 62297972, 78877271, 157754542, 222290491, 315509084, 444580982, 889161964, 2445195401, 4890390802, 9780781604]

約数ペア:

[(1, 9780781604), (2, 4890390802), (4, 2445195401), (11, 889161964), (22, 444580982), (31, 315509084), (44, 222290491), (62, 157754542), (124, 78877271), (157, 62297972), (314, 31148986), (341, 28682644), (628, 15574493), (682, 14341322), (1364, 7170661), (1727, 5663452), (3454, 2831726), (4867, 2009612), (6908, 1415863), (9734, 1004806), (19468, 502403), (45673, 214148), (53537, 182692), (91346, 107074)]