217986916

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 479969280

約数和(自身を除く): 261982364

約数列:

[1, 2, 4, 7, 14, 23, 28, 31, 46, 61, 62, 92, 122, 124, 161, 179, 217, 244, 322, 358, 427, 434, 644, 713, 716, 854, 868, 1253, 1403, 1426, 1708, 1891, 2506, 2806, 2852, 3782, 4117, 4991, 5012, 5549, 5612, 7564, 8234, 9821, 9982, 10919, 11098, 13237, 16468, 19642, 19964, 21838, 22196, 26474, 28819, 38843, 39284, 43493, 43676, 52948, 57638, 76433, 77686, 86986, 115276, 127627, 152866, 155372, 173972, 251137, 255254, 304451, 305732, 338489, 502274, 510508, 608902, 676978, 893389, 1004548, 1217804, 1353956, 1757959, 1786778, 2369423, 3515918, 3573556, 4738846, 7031836, 7785247, 9477692, 15570494, 31140988, 54496729, 108993458, 217986916]

約数ペア:

[(1, 217986916), (2, 108993458), (4, 54496729), (7, 31140988), (14, 15570494), (23, 9477692), (28, 7785247), (31, 7031836), (46, 4738846), (61, 3573556), (62, 3515918), (92, 2369423), (122, 1786778), (124, 1757959), (161, 1353956), (179, 1217804), (217, 1004548), (244, 893389), (322, 676978), (358, 608902), (427, 510508), (434, 502274), (644, 338489), (713, 305732), (716, 304451), (854, 255254), (868, 251137), (1253, 173972), (1403, 155372), (1426, 152866), (1708, 127627), (1891, 115276), (2506, 86986), (2806, 77686), (2852, 76433), (3782, 57638), (4117, 52948), (4991, 43676), (5012, 43493), (5549, 39284), (5612, 38843), (7564, 28819), (8234, 26474), (9821, 22196), (9982, 21838), (10919, 19964), (11098, 19642), (13237, 16468)]