20178690580

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1721}}^1\times {\mathrm{1873}}^1$

素因数の和:3916

約数の個数: 48

約数和(自身を含む): 42558045264

約数和(自身を除く): 22379354684

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 1721, 1873, 3130, 3442, 3746, 6260, 6884, 7492, 8605, 9365, 17210, 18730, 34420, 37460, 538673, 586249, 1077346, 1172498, 2154692, 2344996, 2693365, 2931245, 3223433, 5386730, 5862490, 6446866, 10773460, 11724980, 12893732, 16117165, 32234330, 64468660, 1008934529, 2017869058, 4035738116, 5044672645, 10089345290, 20178690580]

約数ペア:

[(1, 20178690580), (2, 10089345290), (4, 5044672645), (5, 4035738116), (10, 2017869058), (20, 1008934529), (313, 64468660), (626, 32234330), (1252, 16117165), (1565, 12893732), (1721, 11724980), (1873, 10773460), (3130, 6446866), (3442, 5862490), (3746, 5386730), (6260, 3223433), (6884, 2931245), (7492, 2693365), (8605, 2344996), (9365, 2154692), (17210, 1172498), (18730, 1077346), (34420, 586249), (37460, 538673)]