31181340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1021}}^1$

素因数の和:1542

約数の個数: 48

約数和(自身を含む): 87564960

約数和(自身を除く): 56383620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 509, 1018, 1021, 1527, 2036, 2042, 2545, 3054, 3063, 4084, 5090, 5105, 6108, 6126, 7635, 10180, 10210, 12252, 15270, 15315, 20420, 30540, 30630, 61260, 519689, 1039378, 1559067, 2078756, 2598445, 3118134, 5196890, 6236268, 7795335, 10393780, 15590670, 31181340]

約数ペア:

[(1, 31181340), (2, 15590670), (3, 10393780), (4, 7795335), (5, 6236268), (6, 5196890), (10, 3118134), (12, 2598445), (15, 2078756), (20, 1559067), (30, 1039378), (60, 519689), (509, 61260), (1018, 30630), (1021, 30540), (1527, 20420), (2036, 15315), (2042, 15270), (2545, 12252), (3054, 10210), (3063, 10180), (4084, 7635), (5090, 6126), (5105, 6108)]