20288690

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1627}}^1$

素因数の和:1706

約数の個数: 32

約数和(自身を含む): 38681280

約数和(自身を除く): 18392590

約数列:

[1, 2, 5, 10, 29, 43, 58, 86, 145, 215, 290, 430, 1247, 1627, 2494, 3254, 6235, 8135, 12470, 16270, 47183, 69961, 94366, 139922, 235915, 349805, 471830, 699610, 2028869, 4057738, 10144345, 20288690]

約数ペア:

[(1, 20288690), (2, 10144345), (5, 4057738), (10, 2028869), (29, 699610), (43, 471830), (58, 349805), (86, 235915), (145, 139922), (215, 94366), (290, 69961), (430, 47183), (1247, 16270), (1627, 12470), (2494, 8135), (3254, 6235)]