20111696

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{499}}^1$

素因数の和:747

約数の個数: 40

約数和(自身を含む): 42780000

約数和(自身を除く): 22668304

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 229, 458, 499, 916, 998, 1832, 1996, 2519, 3664, 3992, 5038, 5489, 7984, 10076, 10978, 20152, 21956, 40304, 43912, 87824, 114271, 228542, 457084, 914168, 1256981, 1828336, 2513962, 5027924, 10055848, 20111696]

約数ペア:

[(1, 20111696), (2, 10055848), (4, 5027924), (8, 2513962), (11, 1828336), (16, 1256981), (22, 914168), (44, 457084), (88, 228542), (176, 114271), (229, 87824), (458, 43912), (499, 40304), (916, 21956), (998, 20152), (1832, 10978), (1996, 10076), (2519, 7984), (3664, 5489), (3992, 5038)]