204655360

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{251}}^1$

素因数の和:299

約数の個数: 216

約数和(自身を含む): 616560336

約数和(自身を除く): 411904976

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 64, 65, 70, 80, 91, 98, 104, 112, 128, 130, 140, 160, 182, 196, 208, 224, 245, 251, 256, 260, 280, 320, 364, 392, 416, 448, 455, 490, 502, 520, 560, 637, 640, 728, 784, 832, 896, 910, 980, 1004, 1040, 1120, 1255, 1274, 1280, 1456, 1568, 1664, 1757, 1792, 1820, 1960, 2008, 2080, 2240, 2510, 2548, 2912, 3136, 3185, 3263, 3328, 3514, 3640, 3920, 4016, 4160, 4480, 5020, 5096, 5824, 6272, 6370, 6526, 7028, 7280, 7840, 8032, 8320, 8785, 8960, 10040, 10192, 11648, 12299, 12544, 12740, 13052, 14056, 14560, 15680, 16064, 16315, 16640, 17570, 20080, 20384, 22841, 23296, 24598, 25480, 26104, 28112, 29120, 31360, 32128, 32630, 35140, 40160, 40768, 45682, 49196, 50960, 52208, 56224, 58240, 61495, 62720, 64256, 65260, 70280, 80320, 81536, 91364, 98392, 101920, 104416, 112448, 114205, 116480, 122990, 130520, 140560, 159887, 160640, 163072, 182728, 196784, 203840, 208832, 224896, 228410, 245980, 261040, 281120, 319774, 321280, 365456, 393568, 407680, 417664, 449792, 456820, 491960, 522080, 562240, 639548, 730912, 787136, 799435, 815360, 835328, 913640, 983920, 1044160, 1124480, 1279096, 1461824, 1574272, 1598870, 1827280, 1967840, 2088320, 2248960, 2558192, 2923648, 3148544, 3197740, 3654560, 3935680, 4176640, 5116384, 5847296, 6395480, 7309120, 7871360, 10232768, 12790960, 14618240, 15742720, 20465536, 25581920, 29236480, 40931072, 51163840, 102327680, 204655360]

約数ペア:

[(1, 204655360), (2, 102327680), (4, 51163840), (5, 40931072), (7, 29236480), (8, 25581920), (10, 20465536), (13, 15742720), (14, 14618240), (16, 12790960), (20, 10232768), (26, 7871360), (28, 7309120), (32, 6395480), (35, 5847296), (40, 5116384), (49, 4176640), (52, 3935680), (56, 3654560), (64, 3197740), (65, 3148544), (70, 2923648), (80, 2558192), (91, 2248960), (98, 2088320), (104, 1967840), (112, 1827280), (128, 1598870), (130, 1574272), (140, 1461824), (160, 1279096), (182, 1124480), (196, 1044160), (208, 983920), (224, 913640), (245, 835328), (251, 815360), (256, 799435), (260, 787136), (280, 730912), (320, 639548), (364, 562240), (392, 522080), (416, 491960), (448, 456820), (455, 449792), (490, 417664), (502, 407680), (520, 393568), (560, 365456), (637, 321280), (640, 319774), (728, 281120), (784, 261040), (832, 245980), (896, 228410), (910, 224896), (980, 208832), (1004, 203840), (1040, 196784), (1120, 182728), (1255, 163072), (1274, 160640), (1280, 159887), (1456, 140560), (1568, 130520), (1664, 122990), (1757, 116480), (1792, 114205), (1820, 112448), (1960, 104416), (2008, 101920), (2080, 98392), (2240, 91364), (2510, 81536), (2548, 80320), (2912, 70280), (3136, 65260), (3185, 64256), (3263, 62720), (3328, 61495), (3514, 58240), (3640, 56224), (3920, 52208), (4016, 50960), (4160, 49196), (4480, 45682), (5020, 40768), (5096, 40160), (5824, 35140), (6272, 32630), (6370, 32128), (6526, 31360), (7028, 29120), (7280, 28112), (7840, 26104), (8032, 25480), (8320, 24598), (8785, 23296), (8960, 22841), (10040, 20384), (10192, 20080), (11648, 17570), (12299, 16640), (12544, 16315), (12740, 16064), (13052, 15680), (14056, 14560)]