20165912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1999}}^1$

素因数の和:2115

約数の個数: 32

約数和(自身を含む): 41160000

約数和(自身を除く): 20994088

約数列:

[1, 2, 4, 8, 13, 26, 52, 97, 104, 194, 388, 776, 1261, 1999, 2522, 3998, 5044, 7996, 10088, 15992, 25987, 51974, 103948, 193903, 207896, 387806, 775612, 1551224, 2520739, 5041478, 10082956, 20165912]

約数ペア:

[(1, 20165912), (2, 10082956), (4, 5041478), (8, 2520739), (13, 1551224), (26, 775612), (52, 387806), (97, 207896), (104, 193903), (194, 103948), (388, 51974), (776, 25987), (1261, 15992), (1999, 10088), (2522, 7996), (3998, 5044)]