213706640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{54517}}^1$

素因数の和:54544

約数の個数: 60

約数和(自身を含む): 577999836

約数和(自身を除く): 364293196

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 54517, 109034, 218068, 272585, 381619, 436136, 545170, 763238, 872272, 1090340, 1526476, 1908095, 2180680, 2671333, 3052952, 3816190, 4361360, 5342666, 6105904, 7632380, 10685332, 13356665, 15264760, 21370664, 26713330, 30529520, 42741328, 53426660, 106853320, 213706640]

約数ペア:

[(1, 213706640), (2, 106853320), (4, 53426660), (5, 42741328), (7, 30529520), (8, 26713330), (10, 21370664), (14, 15264760), (16, 13356665), (20, 10685332), (28, 7632380), (35, 6105904), (40, 5342666), (49, 4361360), (56, 3816190), (70, 3052952), (80, 2671333), (98, 2180680), (112, 1908095), (140, 1526476), (196, 1090340), (245, 872272), (280, 763238), (392, 545170), (490, 436136), (560, 381619), (784, 272585), (980, 218068), (1960, 109034), (3920, 54517)]