18508420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1811}}^1$

素因数の和:1900

約数の個数: 48

約数和(自身を含む): 45053568

約数和(自身を除く): 26545148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 1811, 2044, 2555, 3622, 5110, 7244, 9055, 10220, 12677, 18110, 25354, 36220, 50708, 63385, 126770, 132203, 253540, 264406, 528812, 661015, 925421, 1322030, 1850842, 2644060, 3701684, 4627105, 9254210, 18508420]

約数ペア:

[(1, 18508420), (2, 9254210), (4, 4627105), (5, 3701684), (7, 2644060), (10, 1850842), (14, 1322030), (20, 925421), (28, 661015), (35, 528812), (70, 264406), (73, 253540), (140, 132203), (146, 126770), (292, 63385), (365, 50708), (511, 36220), (730, 25354), (1022, 18110), (1460, 12677), (1811, 10220), (2044, 9055), (2555, 7244), (3622, 5110)]