1721000990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{263}}^1\times {\mathrm{1237}}^1$

素因数の和:1553

約数の個数: 48

約数和(自身を含む): 3253285728

約数和(自身を除く): 1532284738

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 263, 526, 529, 1058, 1237, 1315, 2474, 2630, 2645, 5290, 6049, 6185, 12098, 12370, 28451, 30245, 56902, 60490, 139127, 142255, 278254, 284510, 325331, 650662, 654373, 695635, 1308746, 1391270, 1626655, 3253310, 3271865, 6543730, 7482613, 14965226, 37413065, 74826130, 172100099, 344200198, 860500495, 1721000990]

約数ペア:

[(1, 1721000990), (2, 860500495), (5, 344200198), (10, 172100099), (23, 74826130), (46, 37413065), (115, 14965226), (230, 7482613), (263, 6543730), (526, 3271865), (529, 3253310), (1058, 1626655), (1237, 1391270), (1315, 1308746), (2474, 695635), (2630, 654373), (2645, 650662), (5290, 325331), (6049, 284510), (6185, 278254), (12098, 142255), (12370, 139127), (28451, 60490), (30245, 56902)]