20060920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{359}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 29705480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 127, 220, 254, 359, 440, 508, 635, 718, 1016, 1270, 1397, 1436, 1795, 2540, 2794, 2872, 3590, 3949, 5080, 5588, 6985, 7180, 7898, 11176, 13970, 14360, 15796, 19745, 27940, 31592, 39490, 45593, 55880, 78980, 91186, 157960, 182372, 227965, 364744, 455930, 501523, 911860, 1003046, 1823720, 2006092, 2507615, 4012184, 5015230, 10030460, 20060920]

約数ペア:

[(1, 20060920), (2, 10030460), (4, 5015230), (5, 4012184), (8, 2507615), (10, 2006092), (11, 1823720), (20, 1003046), (22, 911860), (40, 501523), (44, 455930), (55, 364744), (88, 227965), (110, 182372), (127, 157960), (220, 91186), (254, 78980), (359, 55880), (440, 45593), (508, 39490), (635, 31592), (718, 27940), (1016, 19745), (1270, 15796), (1397, 14360), (1436, 13970), (1795, 11176), (2540, 7898), (2794, 7180), (2872, 6985), (3590, 5588), (3949, 5080)]