1981554764

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{90847}}^1$

素因数の和:90918

約数の個数: 48

約数和(自身を含む): 4273489920

約数和(自身を除く): 2291935156

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 41, 76, 82, 133, 164, 266, 287, 532, 574, 779, 1148, 1558, 3116, 5453, 10906, 21812, 90847, 181694, 363388, 635929, 1271858, 1726093, 2543716, 3452186, 3724727, 6904372, 7449454, 12082651, 14898908, 24165302, 26073089, 48330604, 52146178, 70769813, 104292356, 141539626, 283079252, 495388691, 990777382, 1981554764]

約数ペア:

[(1, 1981554764), (2, 990777382), (4, 495388691), (7, 283079252), (14, 141539626), (19, 104292356), (28, 70769813), (38, 52146178), (41, 48330604), (76, 26073089), (82, 24165302), (133, 14898908), (164, 12082651), (266, 7449454), (287, 6904372), (532, 3724727), (574, 3452186), (779, 2543716), (1148, 1726093), (1558, 1271858), (3116, 635929), (5453, 363388), (10906, 181694), (21812, 90847)]