20700460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4091}}^1$

素因数の和:4134

約数の個数: 48

約数和(自身を含む): 49496832

約数和(自身を除く): 28796372

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 4091, 5060, 8182, 16364, 20455, 40910, 45001, 81820, 90002, 94093, 180004, 188186, 225005, 376372, 450010, 470465, 900020, 940930, 1035023, 1881860, 2070046, 4140092, 5175115, 10350230, 20700460]

約数ペア:

[(1, 20700460), (2, 10350230), (4, 5175115), (5, 4140092), (10, 2070046), (11, 1881860), (20, 1035023), (22, 940930), (23, 900020), (44, 470465), (46, 450010), (55, 376372), (92, 225005), (110, 188186), (115, 180004), (220, 94093), (230, 90002), (253, 81820), (460, 45001), (506, 40910), (1012, 20455), (1265, 16364), (2530, 8182), (4091, 5060)]