640922800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{228901}}^1$

素因数の和:228926

約数の個数: 60

約数和(自身を含む): 1759798576

約数和(自身を除く): 1118875776

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 228901, 457802, 915604, 1144505, 1602307, 1831208, 2289010, 3204614, 3662416, 4578020, 5722525, 6409228, 8011535, 9156040, 11445050, 12818456, 16023070, 18312080, 22890100, 25636912, 32046140, 40057675, 45780200, 64092280, 80115350, 91560400, 128184560, 160230700, 320461400, 640922800]

約数ペア:

[(1, 640922800), (2, 320461400), (4, 160230700), (5, 128184560), (7, 91560400), (8, 80115350), (10, 64092280), (14, 45780200), (16, 40057675), (20, 32046140), (25, 25636912), (28, 22890100), (35, 18312080), (40, 16023070), (50, 12818456), (56, 11445050), (70, 9156040), (80, 8011535), (100, 6409228), (112, 5722525), (140, 4578020), (175, 3662416), (200, 3204614), (280, 2289010), (350, 1831208), (400, 1602307), (560, 1144505), (700, 915604), (1400, 457802), (2800, 228901)]