221857328

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:251

約数の個数: 160

約数和(自身を含む): 571772928

約数和(自身を除く): 349915600

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 37, 44, 56, 62, 74, 77, 88, 112, 124, 148, 154, 157, 176, 217, 248, 259, 296, 308, 314, 341, 407, 434, 496, 518, 592, 616, 628, 682, 814, 868, 1036, 1099, 1147, 1232, 1256, 1364, 1628, 1727, 1736, 2072, 2198, 2294, 2387, 2512, 2728, 2849, 3256, 3454, 3472, 4144, 4396, 4588, 4774, 4867, 5456, 5698, 5809, 6512, 6908, 8029, 8792, 9176, 9548, 9734, 11396, 11618, 12089, 12617, 13816, 16058, 17584, 18352, 19096, 19468, 22792, 23236, 24178, 25234, 27632, 32116, 34069, 38192, 38936, 40663, 45584, 46472, 48356, 50468, 53537, 63899, 64232, 68138, 77872, 81326, 88319, 92944, 96712, 100936, 107074, 127798, 128464, 136276, 162652, 176638, 180079, 193424, 201872, 214148, 255596, 272552, 325304, 353276, 360158, 374759, 428296, 447293, 511192, 545104, 650608, 706552, 720316, 749518, 856592, 894586, 1022384, 1260553, 1413104, 1440632, 1499036, 1789172, 1980869, 2521106, 2881264, 2998072, 3578344, 3961738, 5042212, 5996144, 7156688, 7923476, 10084424, 13866083, 15846952, 20168848, 27732166, 31693904, 55464332, 110928664, 221857328]

約数ペア:

[(1, 221857328), (2, 110928664), (4, 55464332), (7, 31693904), (8, 27732166), (11, 20168848), (14, 15846952), (16, 13866083), (22, 10084424), (28, 7923476), (31, 7156688), (37, 5996144), (44, 5042212), (56, 3961738), (62, 3578344), (74, 2998072), (77, 2881264), (88, 2521106), (112, 1980869), (124, 1789172), (148, 1499036), (154, 1440632), (157, 1413104), (176, 1260553), (217, 1022384), (248, 894586), (259, 856592), (296, 749518), (308, 720316), (314, 706552), (341, 650608), (407, 545104), (434, 511192), (496, 447293), (518, 428296), (592, 374759), (616, 360158), (628, 353276), (682, 325304), (814, 272552), (868, 255596), (1036, 214148), (1099, 201872), (1147, 193424), (1232, 180079), (1256, 176638), (1364, 162652), (1628, 136276), (1727, 128464), (1736, 127798), (2072, 107074), (2198, 100936), (2294, 96712), (2387, 92944), (2512, 88319), (2728, 81326), (2849, 77872), (3256, 68138), (3454, 64232), (3472, 63899), (4144, 53537), (4396, 50468), (4588, 48356), (4774, 46472), (4867, 45584), (5456, 40663), (5698, 38936), (5809, 38192), (6512, 34069), (6908, 32116), (8029, 27632), (8792, 25234), (9176, 24178), (9548, 23236), (9734, 22792), (11396, 19468), (11618, 19096), (12089, 18352), (12617, 17584), (13816, 16058)]