212400340

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{76403}}^1$

素因数の和:76551

約数の個数: 24

約数和(自身を含む): 449255520

約数和(自身を除く): 236855180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 76403, 152806, 305612, 382015, 764030, 1528060, 10620017, 21240034, 42480068, 53100085, 106200170, 212400340]

約数ペア:

[(1, 212400340), (2, 106200170), (4, 53100085), (5, 42480068), (10, 21240034), (20, 10620017), (139, 1528060), (278, 764030), (556, 382015), (695, 305612), (1390, 152806), (2780, 76403)]