6620780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 14938560

約数和(自身を除く): 8317780

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 148, 185, 230, 370, 389, 460, 740, 778, 851, 1556, 1702, 1945, 3404, 3890, 4255, 7780, 8510, 8947, 14393, 17020, 17894, 28786, 35788, 44735, 57572, 71965, 89470, 143930, 178940, 287860, 331039, 662078, 1324156, 1655195, 3310390, 6620780]

約数ペア:

[(1, 6620780), (2, 3310390), (4, 1655195), (5, 1324156), (10, 662078), (20, 331039), (23, 287860), (37, 178940), (46, 143930), (74, 89470), (92, 71965), (115, 57572), (148, 44735), (185, 35788), (230, 28786), (370, 17894), (389, 17020), (460, 14393), (740, 8947), (778, 8510), (851, 7780), (1556, 4255), (1702, 3890), (1945, 3404)]