20457992

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{809}}^1$

素因数の和:953

約数の個数: 32

約数和(自身を含む): 40095000

約数和(自身を除く): 19637008

約数列:

[1, 2, 4, 8, 29, 58, 109, 116, 218, 232, 436, 809, 872, 1618, 3161, 3236, 6322, 6472, 12644, 23461, 25288, 46922, 88181, 93844, 176362, 187688, 352724, 705448, 2557249, 5114498, 10228996, 20457992]

約数ペア:

[(1, 20457992), (2, 10228996), (4, 5114498), (8, 2557249), (29, 705448), (58, 352724), (109, 187688), (116, 176362), (218, 93844), (232, 88181), (436, 46922), (809, 25288), (872, 23461), (1618, 12644), (3161, 6472), (3236, 6322)]