20131412

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{479}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 43008000

約数和(自身を除く): 22876588

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 79, 133, 158, 266, 316, 479, 532, 553, 958, 1106, 1501, 1916, 2212, 3002, 3353, 6004, 6706, 9101, 10507, 13412, 18202, 21014, 36404, 37841, 42028, 63707, 75682, 127414, 151364, 254828, 264887, 529774, 718979, 1059548, 1437958, 2875916, 5032853, 10065706, 20131412]

約数ペア:

[(1, 20131412), (2, 10065706), (4, 5032853), (7, 2875916), (14, 1437958), (19, 1059548), (28, 718979), (38, 529774), (76, 264887), (79, 254828), (133, 151364), (158, 127414), (266, 75682), (316, 63707), (479, 42028), (532, 37841), (553, 36404), (958, 21014), (1106, 18202), (1501, 13412), (1916, 10507), (2212, 9101), (3002, 6706), (3353, 6004)]