664683992

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:385

約数の個数: 128

約数和(自身を含む): 1583539200

約数和(自身を除く): 918855208

約数列:

[1, 2, 4, 7, 8, 14, 19, 23, 28, 38, 46, 56, 76, 92, 133, 152, 157, 161, 173, 184, 266, 314, 322, 346, 437, 532, 628, 644, 692, 874, 1064, 1099, 1211, 1256, 1288, 1384, 1748, 2198, 2422, 2983, 3059, 3287, 3496, 3611, 3979, 4396, 4844, 5966, 6118, 6574, 7222, 7958, 8792, 9688, 11932, 12236, 13148, 14444, 15916, 20881, 23009, 23864, 24472, 25277, 26296, 27161, 27853, 28888, 31832, 41762, 46018, 50554, 54322, 55706, 68609, 75601, 83524, 92036, 101108, 108644, 111412, 137218, 151202, 167048, 184072, 190127, 202216, 217288, 222824, 274436, 302404, 380254, 480263, 516059, 529207, 548872, 604808, 624703, 760508, 960526, 1032118, 1058414, 1249406, 1521016, 1921052, 2064236, 2116828, 2498812, 3612413, 3842104, 4128472, 4233656, 4372921, 4997624, 7224826, 8745842, 11869357, 14449652, 17491684, 23738714, 28899304, 34983368, 47477428, 83085499, 94954856, 166170998, 332341996, 664683992]

約数ペア:

[(1, 664683992), (2, 332341996), (4, 166170998), (7, 94954856), (8, 83085499), (14, 47477428), (19, 34983368), (23, 28899304), (28, 23738714), (38, 17491684), (46, 14449652), (56, 11869357), (76, 8745842), (92, 7224826), (133, 4997624), (152, 4372921), (157, 4233656), (161, 4128472), (173, 3842104), (184, 3612413), (266, 2498812), (314, 2116828), (322, 2064236), (346, 1921052), (437, 1521016), (532, 1249406), (628, 1058414), (644, 1032118), (692, 960526), (874, 760508), (1064, 624703), (1099, 604808), (1211, 548872), (1256, 529207), (1288, 516059), (1384, 480263), (1748, 380254), (2198, 302404), (2422, 274436), (2983, 222824), (3059, 217288), (3287, 202216), (3496, 190127), (3611, 184072), (3979, 167048), (4396, 151202), (4844, 137218), (5966, 111412), (6118, 108644), (6574, 101108), (7222, 92036), (7958, 83524), (8792, 75601), (9688, 68609), (11932, 55706), (12236, 54322), (13148, 50554), (14444, 46018), (15916, 41762), (20881, 31832), (23009, 28888), (23864, 27853), (24472, 27161), (25277, 26296)]