64856680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{231631}}^1$

素因数の和:231649

約数の個数: 32

約数和(自身を含む): 166775040

約数和(自身を除く): 101918360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 231631, 463262, 926524, 1158155, 1621417, 1853048, 2316310, 3242834, 4632620, 6485668, 8107085, 9265240, 12971336, 16214170, 32428340, 64856680]

約数ペア:

[(1, 64856680), (2, 32428340), (4, 16214170), (5, 12971336), (7, 9265240), (8, 8107085), (10, 6485668), (14, 4632620), (20, 3242834), (28, 2316310), (35, 1853048), (40, 1621417), (56, 1158155), (70, 926524), (140, 463262), (280, 231631)]