228315980

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1\times {\mathrm{809}}^1$

素因数の和:1058

約数の個数: 48

約数和(自身を含む): 488255040

約数和(自身を除く): 259939060

約数列:

[1, 2, 4, 5, 10, 20, 103, 137, 206, 274, 412, 515, 548, 685, 809, 1030, 1370, 1618, 2060, 2740, 3236, 4045, 8090, 14111, 16180, 28222, 56444, 70555, 83327, 110833, 141110, 166654, 221666, 282220, 333308, 416635, 443332, 554165, 833270, 1108330, 1666540, 2216660, 11415799, 22831598, 45663196, 57078995, 114157990, 228315980]

約数ペア:

[(1, 228315980), (2, 114157990), (4, 57078995), (5, 45663196), (10, 22831598), (20, 11415799), (103, 2216660), (137, 1666540), (206, 1108330), (274, 833270), (412, 554165), (515, 443332), (548, 416635), (685, 333308), (809, 282220), (1030, 221666), (1370, 166654), (1618, 141110), (2060, 110833), (2740, 83327), (3236, 70555), (4045, 56444), (8090, 28222), (14111, 16180)]