20248400

素因数分解:

$2^4\times 5^2\times {\mathrm{223}}^1\times {\mathrm{227}}^1$

素因数の和:468

約数の個数: 60

約数和(自身を含む): 49080192

約数和(自身を除く): 28831792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 223, 227, 400, 446, 454, 892, 908, 1115, 1135, 1784, 1816, 2230, 2270, 3568, 3632, 4460, 4540, 5575, 5675, 8920, 9080, 11150, 11350, 17840, 18160, 22300, 22700, 44600, 45400, 50621, 89200, 90800, 101242, 202484, 253105, 404968, 506210, 809936, 1012420, 1265525, 2024840, 2531050, 4049680, 5062100, 10124200, 20248400]

約数ペア:

[(1, 20248400), (2, 10124200), (4, 5062100), (5, 4049680), (8, 2531050), (10, 2024840), (16, 1265525), (20, 1012420), (25, 809936), (40, 506210), (50, 404968), (80, 253105), (100, 202484), (200, 101242), (223, 90800), (227, 89200), (400, 50621), (446, 45400), (454, 44600), (892, 22700), (908, 22300), (1115, 18160), (1135, 17840), (1784, 11350), (1816, 11150), (2230, 9080), (2270, 8920), (3568, 5675), (3632, 5575), (4460, 4540)]