3878620

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2179}}^1$

素因数の和:2277

約数の個数: 24

約数和(自身を含む): 8240400

約数和(自身を除く): 4361780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 2179, 4358, 8716, 10895, 21790, 43580, 193931, 387862, 775724, 969655, 1939310, 3878620]

約数ペア:

[(1, 3878620), (2, 1939310), (4, 969655), (5, 775724), (10, 387862), (20, 193931), (89, 43580), (178, 21790), (356, 10895), (445, 8716), (890, 4358), (1780, 2179)]