20941860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8117}}^1$

素因数の和:8172

約数の個数: 48

約数和(自身を含む): 60008256

約数和(自身を除く): 39066396

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 8117, 16234, 24351, 32468, 40585, 48702, 81170, 97404, 121755, 162340, 243510, 349031, 487020, 698062, 1047093, 1396124, 1745155, 2094186, 3490310, 4188372, 5235465, 6980620, 10470930, 20941860]

約数ペア:

[(1, 20941860), (2, 10470930), (3, 6980620), (4, 5235465), (5, 4188372), (6, 3490310), (10, 2094186), (12, 1745155), (15, 1396124), (20, 1047093), (30, 698062), (43, 487020), (60, 349031), (86, 243510), (129, 162340), (172, 121755), (215, 97404), (258, 81170), (430, 48702), (516, 40585), (645, 32468), (860, 24351), (1290, 16234), (2580, 8117)]