20228560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:332

約数の個数: 80

約数和(自身を含む): 51996672

約数和(自身を除く): 31768112

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 127, 176, 181, 220, 254, 362, 440, 508, 635, 724, 880, 905, 1016, 1270, 1397, 1448, 1810, 1991, 2032, 2540, 2794, 2896, 3620, 3982, 5080, 5588, 6985, 7240, 7964, 9955, 10160, 11176, 13970, 14480, 15928, 19910, 22352, 22987, 27940, 31856, 39820, 45974, 55880, 79640, 91948, 111760, 114935, 159280, 183896, 229870, 252857, 367792, 459740, 505714, 919480, 1011428, 1264285, 1838960, 2022856, 2528570, 4045712, 5057140, 10114280, 20228560]

約数ペア:

[(1, 20228560), (2, 10114280), (4, 5057140), (5, 4045712), (8, 2528570), (10, 2022856), (11, 1838960), (16, 1264285), (20, 1011428), (22, 919480), (40, 505714), (44, 459740), (55, 367792), (80, 252857), (88, 229870), (110, 183896), (127, 159280), (176, 114935), (181, 111760), (220, 91948), (254, 79640), (362, 55880), (440, 45974), (508, 39820), (635, 31856), (724, 27940), (880, 22987), (905, 22352), (1016, 19910), (1270, 15928), (1397, 14480), (1448, 13970), (1810, 11176), (1991, 10160), (2032, 9955), (2540, 7964), (2794, 7240), (2896, 6985), (3620, 5588), (3982, 5080)]