20493930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^2\times {\mathrm{499}}^1$

素因数の和:583

約数の個数: 48

約数和(自身を含む): 50652000

約数和(自身を除く): 30158070

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 111, 185, 222, 370, 499, 555, 998, 1110, 1369, 1497, 2495, 2738, 2994, 4107, 4990, 6845, 7485, 8214, 13690, 14970, 18463, 20535, 36926, 41070, 55389, 92315, 110778, 184630, 276945, 553890, 683131, 1366262, 2049393, 3415655, 4098786, 6831310, 10246965, 20493930]

約数ペア:

[(1, 20493930), (2, 10246965), (3, 6831310), (5, 4098786), (6, 3415655), (10, 2049393), (15, 1366262), (30, 683131), (37, 553890), (74, 276945), (111, 184630), (185, 110778), (222, 92315), (370, 55389), (499, 41070), (555, 36926), (998, 20535), (1110, 18463), (1369, 14970), (1497, 13690), (2495, 8214), (2738, 7485), (2994, 6845), (4107, 4990)]