128640650

素因数分解:

$2^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{43607}}^1$

素因数の和:43678

約数の個数: 24

約数和(自身を含む): 243332640

約数和(自身を除く): 114691990

約数列:

[1, 2, 5, 10, 25, 50, 59, 118, 295, 590, 1475, 2950, 43607, 87214, 218035, 436070, 1090175, 2180350, 2572813, 5145626, 12864065, 25728130, 64320325, 128640650]

約数ペア:

[(1, 128640650), (2, 64320325), (5, 25728130), (10, 12864065), (25, 5145626), (50, 2572813), (59, 2180350), (118, 1090175), (295, 436070), (590, 218035), (1475, 87214), (2950, 43607)]