20474366985

素因数分解:

$3^2\times 5^1\times {\mathrm{463}}^1\times {\mathrm{571}}^1\times {\mathrm{1721}}^1$

素因数の和:2766

約数の個数: 48

約数和(自身を含む): 35648540928

約数和(自身を除く): 15174173943

約数列:

[1, 3, 5, 9, 15, 45, 463, 571, 1389, 1713, 1721, 2315, 2855, 4167, 5139, 5163, 6945, 8565, 8605, 15489, 20835, 25695, 25815, 77445, 264373, 793119, 796823, 982691, 1321865, 2379357, 2390469, 2948073, 3965595, 3984115, 4913455, 7171407, 8844219, 11896785, 11952345, 14740365, 35857035, 44221095, 454985933, 1364957799, 2274929665, 4094873397, 6824788995, 20474366985]

約数ペア:

[(1, 20474366985), (3, 6824788995), (5, 4094873397), (9, 2274929665), (15, 1364957799), (45, 454985933), (463, 44221095), (571, 35857035), (1389, 14740365), (1713, 11952345), (1721, 11896785), (2315, 8844219), (2855, 7171407), (4167, 4913455), (5139, 3984115), (5163, 3965595), (6945, 2948073), (8565, 2390469), (8605, 2379357), (15489, 1321865), (20835, 982691), (25695, 796823), (25815, 793119), (77445, 264373)]