80671220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{576223}}^1$

素因数の和:576239

約数の個数: 24

約数和(自身を含む): 193611264

約数和(自身を除く): 112940044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 576223, 1152446, 2304892, 2881115, 4033561, 5762230, 8067122, 11524460, 16134244, 20167805, 40335610, 80671220]

約数ペア:

[(1, 80671220), (2, 40335610), (4, 20167805), (5, 16134244), (7, 11524460), (10, 8067122), (14, 5762230), (20, 4033561), (28, 2881115), (35, 2304892), (70, 1152446), (140, 576223)]