28064260

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{4091}}^1$

素因数の和:4121

約数の個数: 48

約数和(自身を含む): 68745600

約数和(自身を除く): 40681340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 4091, 6860, 8182, 16364, 20455, 28637, 40910, 57274, 81820, 114548, 143185, 200459, 286370, 400918, 572740, 801836, 1002295, 1403213, 2004590, 2806426, 4009180, 5612852, 7016065, 14032130, 28064260]

約数ペア:

[(1, 28064260), (2, 14032130), (4, 7016065), (5, 5612852), (7, 4009180), (10, 2806426), (14, 2004590), (20, 1403213), (28, 1002295), (35, 801836), (49, 572740), (70, 400918), (98, 286370), (140, 200459), (196, 143185), (245, 114548), (343, 81820), (490, 57274), (686, 40910), (980, 28637), (1372, 20455), (1715, 16364), (3430, 8182), (4091, 6860)]