19464160

素因数分解:

$2^5\times 5^1\times {\mathrm{239}}^1\times {\mathrm{509}}^1$

素因数の和:763

約数の個数: 48

約数和(自身を含む): 46267200

約数和(自身を除く): 26803040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 239, 478, 509, 956, 1018, 1195, 1912, 2036, 2390, 2545, 3824, 4072, 4780, 5090, 7648, 8144, 9560, 10180, 16288, 19120, 20360, 38240, 40720, 81440, 121651, 243302, 486604, 608255, 973208, 1216510, 1946416, 2433020, 3892832, 4866040, 9732080, 19464160]

約数ペア:

[(1, 19464160), (2, 9732080), (4, 4866040), (5, 3892832), (8, 2433020), (10, 1946416), (16, 1216510), (20, 973208), (32, 608255), (40, 486604), (80, 243302), (160, 121651), (239, 81440), (478, 40720), (509, 38240), (956, 20360), (1018, 19120), (1195, 16288), (1912, 10180), (2036, 9560), (2390, 8144), (2545, 7648), (3824, 5090), (4072, 4780)]