646913328

素因数分解:

$2^4\times 3^1\times {\mathrm{37}}^1\times {\mathrm{43}}^2\times {\mathrm{197}}^1$

素因数の和:331

約数の個数: 120

約数和(自身を含む): 1766123568

約数和(自身を除く): 1119210240

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 37, 43, 48, 74, 86, 111, 129, 148, 172, 197, 222, 258, 296, 344, 394, 444, 516, 591, 592, 688, 788, 888, 1032, 1182, 1576, 1591, 1776, 1849, 2064, 2364, 3152, 3182, 3698, 4728, 4773, 5547, 6364, 7289, 7396, 8471, 9456, 9546, 11094, 12728, 14578, 14792, 16942, 19092, 21867, 22188, 25413, 25456, 29156, 29584, 33884, 38184, 43734, 44376, 50826, 58312, 67768, 68413, 76368, 87468, 88752, 101652, 116624, 135536, 136826, 174936, 203304, 205239, 273652, 313427, 349872, 364253, 406608, 410478, 547304, 626854, 728506, 820956, 940281, 1092759, 1094608, 1253708, 1457012, 1641912, 1880562, 2185518, 2507416, 2914024, 3283824, 3761124, 4371036, 5014832, 5828048, 7522248, 8742072, 13477361, 15044496, 17484144, 26954722, 40432083, 53909444, 80864166, 107818888, 161728332, 215637776, 323456664, 646913328]

約数ペア:

[(1, 646913328), (2, 323456664), (3, 215637776), (4, 161728332), (6, 107818888), (8, 80864166), (12, 53909444), (16, 40432083), (24, 26954722), (37, 17484144), (43, 15044496), (48, 13477361), (74, 8742072), (86, 7522248), (111, 5828048), (129, 5014832), (148, 4371036), (172, 3761124), (197, 3283824), (222, 2914024), (258, 2507416), (296, 2185518), (344, 1880562), (394, 1641912), (444, 1457012), (516, 1253708), (591, 1094608), (592, 1092759), (688, 940281), (788, 820956), (888, 728506), (1032, 626854), (1182, 547304), (1576, 410478), (1591, 406608), (1776, 364253), (1849, 349872), (2064, 313427), (2364, 273652), (3152, 205239), (3182, 203304), (3698, 174936), (4728, 136826), (4773, 135536), (5547, 116624), (6364, 101652), (7289, 88752), (7396, 87468), (8471, 76368), (9456, 68413), (9546, 67768), (11094, 58312), (12728, 50826), (14578, 44376), (14792, 43734), (16942, 38184), (19092, 33884), (21867, 29584), (22188, 29156), (25413, 25456)]