1729420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1123}}^1$

素因数の和:1150

約数の個数: 48

約数和(自身を含む): 4531968

約数和(自身を除く): 2802548

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1123, 1540, 2246, 4492, 5615, 7861, 11230, 12353, 15722, 22460, 24706, 31444, 39305, 49412, 61765, 78610, 86471, 123530, 157220, 172942, 247060, 345884, 432355, 864710, 1729420]

約数ペア:

[(1, 1729420), (2, 864710), (4, 432355), (5, 345884), (7, 247060), (10, 172942), (11, 157220), (14, 123530), (20, 86471), (22, 78610), (28, 61765), (35, 49412), (44, 39305), (55, 31444), (70, 24706), (77, 22460), (110, 15722), (140, 12353), (154, 11230), (220, 7861), (308, 5615), (385, 4492), (770, 2246), (1123, 1540)]