90056680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{321631}}^1$

素因数の和:321649

約数の個数: 32

約数和(自身を含む): 231575040

約数和(自身を除く): 141518360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 321631, 643262, 1286524, 1608155, 2251417, 2573048, 3216310, 4502834, 6432620, 9005668, 11257085, 12865240, 18011336, 22514170, 45028340, 90056680]

約数ペア:

[(1, 90056680), (2, 45028340), (4, 22514170), (5, 18011336), (7, 12865240), (8, 11257085), (10, 9005668), (14, 6432620), (20, 4502834), (28, 3216310), (35, 2573048), (40, 2251417), (56, 1608155), (70, 1286524), (140, 643262), (280, 321631)]