818904890

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{15727}}^1$

素因数の和:15902

約数の個数: 32

約数和(自身を含む): 1521967104

約数和(自身を除く): 703062214

約数列:

[1, 2, 5, 10, 41, 82, 127, 205, 254, 410, 635, 1270, 5207, 10414, 15727, 26035, 31454, 52070, 78635, 157270, 644807, 1289614, 1997329, 3224035, 3994658, 6448070, 9986645, 19973290, 81890489, 163780978, 409452445, 818904890]

約数ペア:

[(1, 818904890), (2, 409452445), (5, 163780978), (10, 81890489), (41, 19973290), (82, 9986645), (127, 6448070), (205, 3994658), (254, 3224035), (410, 1997329), (635, 1289614), (1270, 644807), (5207, 157270), (10414, 78635), (15727, 52070), (26035, 31454)]