20400016

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14011}}^1$

素因数の和:14039

約数の個数: 40

約数和(自身を含む): 48649664

約数和(自身を除く): 28249648

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14011, 28022, 56044, 98077, 112088, 182143, 196154, 224176, 364286, 392308, 728572, 784616, 1275001, 1457144, 1569232, 2550002, 2914288, 5100004, 10200008, 20400016]

約数ペア:

[(1, 20400016), (2, 10200008), (4, 5100004), (7, 2914288), (8, 2550002), (13, 1569232), (14, 1457144), (16, 1275001), (26, 784616), (28, 728572), (52, 392308), (56, 364286), (91, 224176), (104, 196154), (112, 182143), (182, 112088), (208, 98077), (364, 56044), (728, 28022), (1456, 14011)]