18397960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{65707}}^1$

素因数の和:65725

約数の個数: 32

約数和(自身を含む): 47309760

約数和(自身を除く): 28911800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 65707, 131414, 262828, 328535, 459949, 525656, 657070, 919898, 1314140, 1839796, 2299745, 2628280, 3679592, 4599490, 9198980, 18397960]

約数ペア:

[(1, 18397960), (2, 9198980), (4, 4599490), (5, 3679592), (7, 2628280), (8, 2299745), (10, 1839796), (14, 1314140), (20, 919898), (28, 657070), (35, 525656), (40, 459949), (56, 328535), (70, 262828), (140, 131414), (280, 65707)]