256143272

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{179}}^1$

素因数の和:327

約数の個数: 128

約数和(自身を含む): 634521600

約数和(自身を除く): 378378328

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 23, 28, 44, 46, 56, 77, 88, 92, 101, 154, 161, 179, 184, 202, 253, 308, 322, 358, 404, 506, 616, 644, 707, 716, 808, 1012, 1111, 1253, 1288, 1414, 1432, 1771, 1969, 2024, 2222, 2323, 2506, 2828, 3542, 3938, 4117, 4444, 4646, 5012, 5656, 7084, 7777, 7876, 8234, 8888, 9292, 10024, 13783, 14168, 15554, 15752, 16261, 16468, 18079, 18584, 25553, 27566, 28819, 31108, 32522, 32936, 36158, 45287, 51106, 55132, 57638, 62216, 65044, 72316, 90574, 102212, 110264, 115276, 126553, 130088, 144632, 178871, 181148, 198869, 204424, 230552, 253106, 317009, 357742, 362296, 397738, 415817, 506212, 634018, 715484, 795476, 831634, 1012424, 1268036, 1392083, 1430968, 1590952, 1663268, 2536072, 2784166, 2910719, 3326536, 4573987, 5568332, 5821438, 9147974, 11136664, 11642876, 18295948, 23285752, 32017909, 36591896, 64035818, 128071636, 256143272]

約数ペア:

[(1, 256143272), (2, 128071636), (4, 64035818), (7, 36591896), (8, 32017909), (11, 23285752), (14, 18295948), (22, 11642876), (23, 11136664), (28, 9147974), (44, 5821438), (46, 5568332), (56, 4573987), (77, 3326536), (88, 2910719), (92, 2784166), (101, 2536072), (154, 1663268), (161, 1590952), (179, 1430968), (184, 1392083), (202, 1268036), (253, 1012424), (308, 831634), (322, 795476), (358, 715484), (404, 634018), (506, 506212), (616, 415817), (644, 397738), (707, 362296), (716, 357742), (808, 317009), (1012, 253106), (1111, 230552), (1253, 204424), (1288, 198869), (1414, 181148), (1432, 178871), (1771, 144632), (1969, 130088), (2024, 126553), (2222, 115276), (2323, 110264), (2506, 102212), (2828, 90574), (3542, 72316), (3938, 65044), (4117, 62216), (4444, 57638), (4646, 55132), (5012, 51106), (5656, 45287), (7084, 36158), (7777, 32936), (7876, 32522), (8234, 31108), (8888, 28819), (9292, 27566), (10024, 25553), (13783, 18584), (14168, 18079), (15554, 16468), (15752, 16261)]