2115580

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{761}}^1$

素因数の和:909

約数の個数: 24

約数和(自身を含む): 4480560

約数和(自身を除く): 2364980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 761, 1390, 1522, 2780, 3044, 3805, 7610, 15220, 105779, 211558, 423116, 528895, 1057790, 2115580]

約数ペア:

[(1, 2115580), (2, 1057790), (4, 528895), (5, 423116), (10, 211558), (20, 105779), (139, 15220), (278, 7610), (556, 3805), (695, 3044), (761, 2780), (1390, 1522)]