18916620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{8521}}^1$

素因数の和:8570

約数の個数: 48

約数和(自身を含む): 54404448

約数和(自身を除く): 35487828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 148, 185, 222, 370, 444, 555, 740, 1110, 2220, 8521, 17042, 25563, 34084, 42605, 51126, 85210, 102252, 127815, 170420, 255630, 315277, 511260, 630554, 945831, 1261108, 1576385, 1891662, 3152770, 3783324, 4729155, 6305540, 9458310, 18916620]

約数ペア:

[(1, 18916620), (2, 9458310), (3, 6305540), (4, 4729155), (5, 3783324), (6, 3152770), (10, 1891662), (12, 1576385), (15, 1261108), (20, 945831), (30, 630554), (37, 511260), (60, 315277), (74, 255630), (111, 170420), (148, 127815), (185, 102252), (222, 85210), (370, 51126), (444, 42605), (555, 34084), (740, 25563), (1110, 17042), (2220, 8521)]