20155177720

素因数分解:

$2^3\times 5^1\times {\mathrm{547}}^1\times {\mathrm{921169}}^1$

素因数の和:921727

約数の個数: 32

約数和(自身を含む): 45432104400

約数和(自身を除く): 25276926680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547, 1094, 2188, 2735, 4376, 5470, 10940, 21880, 921169, 1842338, 3684676, 4605845, 7369352, 9211690, 18423380, 36846760, 503879443, 1007758886, 2015517772, 2519397215, 4031035544, 5038794430, 10077588860, 20155177720]

約数ペア:

[(1, 20155177720), (2, 10077588860), (4, 5038794430), (5, 4031035544), (8, 2519397215), (10, 2015517772), (20, 1007758886), (40, 503879443), (547, 36846760), (1094, 18423380), (2188, 9211690), (2735, 7369352), (4376, 4605845), (5470, 3684676), (10940, 1842338), (21880, 921169)]