1399694800

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{71413}}^1$

素因数の和:71445

約数の個数: 90

約数和(自身を含む): 3911844678

約数和(自身を除く): 2512149878

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1225, 1400, 1960, 2450, 2800, 3920, 4900, 9800, 19600, 71413, 142826, 285652, 357065, 499891, 571304, 714130, 999782, 1142608, 1428260, 1785325, 1999564, 2499455, 2856520, 3499237, 3570650, 3999128, 4998910, 5713040, 6998474, 7141300, 7998256, 9997820, 12497275, 13996948, 14282600, 17496185, 19995640, 24994550, 27993896, 28565200, 34992370, 39991280, 49989100, 55987792, 69984740, 87480925, 99978200, 139969480, 174961850, 199956400, 279938960, 349923700, 699847400, 1399694800]

約数ペア:

[(1, 1399694800), (2, 699847400), (4, 349923700), (5, 279938960), (7, 199956400), (8, 174961850), (10, 139969480), (14, 99978200), (16, 87480925), (20, 69984740), (25, 55987792), (28, 49989100), (35, 39991280), (40, 34992370), (49, 28565200), (50, 27993896), (56, 24994550), (70, 19995640), (80, 17496185), (98, 14282600), (100, 13996948), (112, 12497275), (140, 9997820), (175, 7998256), (196, 7141300), (200, 6998474), (245, 5713040), (280, 4998910), (350, 3999128), (392, 3570650), (400, 3499237), (490, 2856520), (560, 2499455), (700, 1999564), (784, 1785325), (980, 1428260), (1225, 1142608), (1400, 999782), (1960, 714130), (2450, 571304), (2800, 499891), (3920, 357065), (4900, 285652), (9800, 142826), (19600, 71413)]