28125520

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1471}}^1$

素因数の和:1723

約数の個数: 40

約数和(自身を含む): 65710080

約数和(自身を除く): 37584560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 956, 1195, 1471, 1912, 2390, 2942, 3824, 4780, 5884, 7355, 9560, 11768, 14710, 19120, 23536, 29420, 58840, 117680, 351569, 703138, 1406276, 1757845, 2812552, 3515690, 5625104, 7031380, 14062760, 28125520]

約数ペア:

[(1, 28125520), (2, 14062760), (4, 7031380), (5, 5625104), (8, 3515690), (10, 2812552), (16, 1757845), (20, 1406276), (40, 703138), (80, 351569), (239, 117680), (478, 58840), (956, 29420), (1195, 23536), (1471, 19120), (1912, 14710), (2390, 11768), (2942, 9560), (3824, 7355), (4780, 5884)]