20707400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{2113}}^1$

素因数の和:2143

約数の個数: 72

約数和(自身を含む): 56031570

約数和(自身を除く): 35324170

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2113, 2450, 4226, 4900, 8452, 9800, 10565, 14791, 16904, 21130, 29582, 42260, 52825, 59164, 73955, 84520, 103537, 105650, 118328, 147910, 207074, 211300, 295820, 369775, 414148, 422600, 517685, 591640, 739550, 828296, 1035370, 1479100, 2070740, 2588425, 2958200, 4141480, 5176850, 10353700, 20707400]

約数ペア:

[(1, 20707400), (2, 10353700), (4, 5176850), (5, 4141480), (7, 2958200), (8, 2588425), (10, 2070740), (14, 1479100), (20, 1035370), (25, 828296), (28, 739550), (35, 591640), (40, 517685), (49, 422600), (50, 414148), (56, 369775), (70, 295820), (98, 211300), (100, 207074), (140, 147910), (175, 118328), (196, 105650), (200, 103537), (245, 84520), (280, 73955), (350, 59164), (392, 52825), (490, 42260), (700, 29582), (980, 21130), (1225, 16904), (1400, 14791), (1960, 10565), (2113, 9800), (2450, 8452), (4226, 4900)]