217323568

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{419}}^1\times {\mathrm{421}}^1$

素因数の和:866

約数の個数: 80

約数和(自身を含む): 527466240

約数和(自身を除く): 310142672

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 419, 421, 616, 838, 842, 1232, 1676, 1684, 2933, 2947, 3352, 3368, 4609, 4631, 5866, 5894, 6704, 6736, 9218, 9262, 11732, 11788, 18436, 18524, 23464, 23576, 32263, 32417, 36872, 37048, 46928, 47152, 64526, 64834, 73744, 74096, 129052, 129668, 176399, 258104, 259336, 352798, 516208, 518672, 705596, 1234793, 1411192, 1940389, 2469586, 2822384, 3880778, 4939172, 7761556, 9878344, 13582723, 15523112, 19756688, 27165446, 31046224, 54330892, 108661784, 217323568]

約数ペア:

[(1, 217323568), (2, 108661784), (4, 54330892), (7, 31046224), (8, 27165446), (11, 19756688), (14, 15523112), (16, 13582723), (22, 9878344), (28, 7761556), (44, 4939172), (56, 3880778), (77, 2822384), (88, 2469586), (112, 1940389), (154, 1411192), (176, 1234793), (308, 705596), (419, 518672), (421, 516208), (616, 352798), (838, 259336), (842, 258104), (1232, 176399), (1676, 129668), (1684, 129052), (2933, 74096), (2947, 73744), (3352, 64834), (3368, 64526), (4609, 47152), (4631, 46928), (5866, 37048), (5894, 36872), (6704, 32417), (6736, 32263), (9218, 23576), (9262, 23464), (11732, 18524), (11788, 18436)]