388102760

素因数分解:

$2^3\times 5^1\times {\mathrm{1361}}^1\times {\mathrm{7129}}^1$

素因数の和:8501

約数の個数: 32

約数和(自身を含む): 873995400

約数和(自身を除く): 485892640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1361, 2722, 5444, 6805, 7129, 10888, 13610, 14258, 27220, 28516, 35645, 54440, 57032, 71290, 142580, 285160, 9702569, 19405138, 38810276, 48512845, 77620552, 97025690, 194051380, 388102760]

約数ペア:

[(1, 388102760), (2, 194051380), (4, 97025690), (5, 77620552), (8, 48512845), (10, 38810276), (20, 19405138), (40, 9702569), (1361, 285160), (2722, 142580), (5444, 71290), (6805, 57032), (7129, 54440), (10888, 35645), (13610, 28516), (14258, 27220)]