66828880

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19427}}^1$

素因数の和:19483

約数の個数: 40

約数和(自身を含む): 158998752

約数和(自身を除く): 92169872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 19427, 38854, 77708, 97135, 155416, 194270, 310832, 388540, 777080, 835361, 1554160, 1670722, 3341444, 4176805, 6682888, 8353610, 13365776, 16707220, 33414440, 66828880]

約数ペア:

[(1, 66828880), (2, 33414440), (4, 16707220), (5, 13365776), (8, 8353610), (10, 6682888), (16, 4176805), (20, 3341444), (40, 1670722), (43, 1554160), (80, 835361), (86, 777080), (172, 388540), (215, 310832), (344, 194270), (430, 155416), (688, 97135), (860, 77708), (1720, 38854), (3440, 19427)]