1861107780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{12553}}^1$

素因数の和:12925

約数の個数: 96

約数和(自身を含む): 5972891904

約数和(自身を除く): 4111784124

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 353, 420, 706, 1059, 1412, 1765, 2118, 2471, 3530, 4236, 4942, 5295, 7060, 7413, 9884, 10590, 12355, 12553, 14826, 21180, 24710, 25106, 29652, 37065, 37659, 49420, 50212, 62765, 74130, 75318, 87871, 125530, 148260, 150636, 175742, 188295, 251060, 263613, 351484, 376590, 439355, 527226, 753180, 878710, 1054452, 1318065, 1757420, 2636130, 4431209, 5272260, 8862418, 13293627, 17724836, 22156045, 26587254, 31018463, 44312090, 53174508, 62036926, 66468135, 88624180, 93055389, 124073852, 132936270, 155092315, 186110778, 265872540, 310184630, 372221556, 465276945, 620369260, 930553890, 1861107780]

約数ペア:

[(1, 1861107780), (2, 930553890), (3, 620369260), (4, 465276945), (5, 372221556), (6, 310184630), (7, 265872540), (10, 186110778), (12, 155092315), (14, 132936270), (15, 124073852), (20, 93055389), (21, 88624180), (28, 66468135), (30, 62036926), (35, 53174508), (42, 44312090), (60, 31018463), (70, 26587254), (84, 22156045), (105, 17724836), (140, 13293627), (210, 8862418), (353, 5272260), (420, 4431209), (706, 2636130), (1059, 1757420), (1412, 1318065), (1765, 1054452), (2118, 878710), (2471, 753180), (3530, 527226), (4236, 439355), (4942, 376590), (5295, 351484), (7060, 263613), (7413, 251060), (9884, 188295), (10590, 175742), (12355, 150636), (12553, 148260), (14826, 125530), (21180, 87871), (24710, 75318), (25106, 74130), (29652, 62765), (37065, 50212), (37659, 49420)]