208704620

素因数分解:

$2^2\times 5^1\times {\mathrm{2179}}^1\times {\mathrm{4789}}^1$

素因数の和:6977

約数の個数: 24

約数和(自身を含む): 438572400

約数和(自身を除く): 229867780

約数列:

[1, 2, 4, 5, 10, 20, 2179, 4358, 4789, 8716, 9578, 10895, 19156, 21790, 23945, 43580, 47890, 95780, 10435231, 20870462, 41740924, 52176155, 104352310, 208704620]

約数ペア:

[(1, 208704620), (2, 104352310), (4, 52176155), (5, 41740924), (10, 20870462), (20, 10435231), (2179, 95780), (4358, 47890), (4789, 43580), (8716, 23945), (9578, 21790), (10895, 19156)]