20191516

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 38864448

約数和(自身を除く): 18672932

約数列:

[1, 2, 4, 23, 41, 46, 53, 82, 92, 101, 106, 164, 202, 212, 404, 943, 1219, 1886, 2173, 2323, 2438, 3772, 4141, 4346, 4646, 4876, 5353, 8282, 8692, 9292, 10706, 16564, 21412, 49979, 95243, 99958, 123119, 190486, 199916, 219473, 246238, 380972, 438946, 492476, 877892, 5047879, 10095758, 20191516]

約数ペア:

[(1, 20191516), (2, 10095758), (4, 5047879), (23, 877892), (41, 492476), (46, 438946), (53, 380972), (82, 246238), (92, 219473), (101, 199916), (106, 190486), (164, 123119), (202, 99958), (212, 95243), (404, 49979), (943, 21412), (1219, 16564), (1886, 10706), (2173, 9292), (2323, 8692), (2438, 8282), (3772, 5353), (4141, 4876), (4346, 4646)]