65981780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{1051}}^1$

素因数の和:1176

約数の個数: 48

約数和(自身を含む): 143863104

約数和(自身を除く): 77881324

約数列:

[1, 2, 4, 5, 10, 20, 43, 73, 86, 146, 172, 215, 292, 365, 430, 730, 860, 1051, 1460, 2102, 3139, 4204, 5255, 6278, 10510, 12556, 15695, 21020, 31390, 45193, 62780, 76723, 90386, 153446, 180772, 225965, 306892, 383615, 451930, 767230, 903860, 1534460, 3299089, 6598178, 13196356, 16495445, 32990890, 65981780]

約数ペア:

[(1, 65981780), (2, 32990890), (4, 16495445), (5, 13196356), (10, 6598178), (20, 3299089), (43, 1534460), (73, 903860), (86, 767230), (146, 451930), (172, 383615), (215, 306892), (292, 225965), (365, 180772), (430, 153446), (730, 90386), (860, 76723), (1051, 62780), (1460, 45193), (2102, 31390), (3139, 21020), (4204, 15695), (5255, 12556), (6278, 10510)]