18814736

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:144

約数の個数: 80

約数和(自身を含む): 41247360

約数和(自身を除く): 22432624

約数列:

[1, 2, 4, 8, 16, 23, 29, 41, 43, 46, 58, 82, 86, 92, 116, 164, 172, 184, 232, 328, 344, 368, 464, 656, 667, 688, 943, 989, 1189, 1247, 1334, 1763, 1886, 1978, 2378, 2494, 2668, 3526, 3772, 3956, 4756, 4988, 5336, 7052, 7544, 7912, 9512, 9976, 10672, 14104, 15088, 15824, 19024, 19952, 27347, 28208, 28681, 40549, 51127, 54694, 57362, 81098, 102254, 109388, 114724, 162196, 204508, 218776, 229448, 324392, 409016, 437552, 458896, 648784, 818032, 1175921, 2351842, 4703684, 9407368, 18814736]

約数ペア:

[(1, 18814736), (2, 9407368), (4, 4703684), (8, 2351842), (16, 1175921), (23, 818032), (29, 648784), (41, 458896), (43, 437552), (46, 409016), (58, 324392), (82, 229448), (86, 218776), (92, 204508), (116, 162196), (164, 114724), (172, 109388), (184, 102254), (232, 81098), (328, 57362), (344, 54694), (368, 51127), (464, 40549), (656, 28681), (667, 28208), (688, 27347), (943, 19952), (989, 19024), (1189, 15824), (1247, 15088), (1334, 14104), (1763, 10672), (1886, 9976), (1978, 9512), (2378, 7912), (2494, 7544), (2668, 7052), (3526, 5336), (3772, 4988), (3956, 4756)]