20015996

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4999}}^1$

素因数の和:5034

約数の個数: 48

約数和(自身を含む): 47040000

約数和(自身を除く): 27024004

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 4999, 9998, 19996, 34993, 54989, 64987, 69986, 109978, 129974, 139972, 219956, 259948, 384923, 454909, 714857, 769846, 909818, 1429714, 1539692, 1819636, 2859428, 5003999, 10007998, 20015996]

約数ペア:

[(1, 20015996), (2, 10007998), (4, 5003999), (7, 2859428), (11, 1819636), (13, 1539692), (14, 1429714), (22, 909818), (26, 769846), (28, 714857), (44, 454909), (52, 384923), (77, 259948), (91, 219956), (143, 139972), (154, 129974), (182, 109978), (286, 69986), (308, 64987), (364, 54989), (572, 34993), (1001, 19996), (2002, 9998), (4004, 4999)]