19866700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:403

約数の個数: 72

約数和(自身を含む): 49934304

約数和(自身を除く): 30067604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 101, 140, 175, 202, 281, 350, 404, 505, 562, 700, 707, 1010, 1124, 1405, 1414, 1967, 2020, 2525, 2810, 2828, 3535, 3934, 5050, 5620, 7025, 7070, 7868, 9835, 10100, 14050, 14140, 17675, 19670, 28100, 28381, 35350, 39340, 49175, 56762, 70700, 98350, 113524, 141905, 196700, 198667, 283810, 397334, 567620, 709525, 794668, 993335, 1419050, 1986670, 2838100, 3973340, 4966675, 9933350, 19866700]

約数ペア:

[(1, 19866700), (2, 9933350), (4, 4966675), (5, 3973340), (7, 2838100), (10, 1986670), (14, 1419050), (20, 993335), (25, 794668), (28, 709525), (35, 567620), (50, 397334), (70, 283810), (100, 198667), (101, 196700), (140, 141905), (175, 113524), (202, 98350), (281, 70700), (350, 56762), (404, 49175), (505, 39340), (562, 35350), (700, 28381), (707, 28100), (1010, 19670), (1124, 17675), (1405, 14140), (1414, 14050), (1967, 10100), (2020, 9835), (2525, 7868), (2810, 7070), (2828, 7025), (3535, 5620), (3934, 5050)]