1220280320

素因数分解:

$2^{18}\times 5^1\times 7^2\times {\mathrm{19}}^1$

素因数の和:74

約数の個数: 228

約数和(自身を含む): 3586123080

約数和(自身を除く): 2365842760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 64, 70, 76, 80, 95, 98, 112, 128, 133, 140, 152, 160, 190, 196, 224, 245, 256, 266, 280, 304, 320, 380, 392, 448, 490, 512, 532, 560, 608, 640, 665, 760, 784, 896, 931, 980, 1024, 1064, 1120, 1216, 1280, 1330, 1520, 1568, 1792, 1862, 1960, 2048, 2128, 2240, 2432, 2560, 2660, 3040, 3136, 3584, 3724, 3920, 4096, 4256, 4480, 4655, 4864, 5120, 5320, 6080, 6272, 7168, 7448, 7840, 8192, 8512, 8960, 9310, 9728, 10240, 10640, 12160, 12544, 14336, 14896, 15680, 16384, 17024, 17920, 18620, 19456, 20480, 21280, 24320, 25088, 28672, 29792, 31360, 32768, 34048, 35840, 37240, 38912, 40960, 42560, 48640, 50176, 57344, 59584, 62720, 65536, 68096, 71680, 74480, 77824, 81920, 85120, 97280, 100352, 114688, 119168, 125440, 131072, 136192, 143360, 148960, 155648, 163840, 170240, 194560, 200704, 229376, 238336, 250880, 262144, 272384, 286720, 297920, 311296, 327680, 340480, 389120, 401408, 458752, 476672, 501760, 544768, 573440, 595840, 622592, 655360, 680960, 778240, 802816, 917504, 953344, 1003520, 1089536, 1146880, 1191680, 1245184, 1310720, 1361920, 1556480, 1605632, 1835008, 1906688, 2007040, 2179072, 2293760, 2383360, 2490368, 2723840, 3112960, 3211264, 3813376, 4014080, 4358144, 4587520, 4766720, 4980736, 5447680, 6225920, 6422528, 7626752, 8028160, 8716288, 9175040, 9533440, 10895360, 12451840, 12845056, 15253504, 16056320, 17432576, 19066880, 21790720, 24903680, 30507008, 32112640, 34865152, 38133760, 43581440, 61014016, 64225280, 76267520, 87162880, 122028032, 152535040, 174325760, 244056064, 305070080, 610140160, 1220280320]

約数ペア:

[(1, 1220280320), (2, 610140160), (4, 305070080), (5, 244056064), (7, 174325760), (8, 152535040), (10, 122028032), (14, 87162880), (16, 76267520), (19, 64225280), (20, 61014016), (28, 43581440), (32, 38133760), (35, 34865152), (38, 32112640), (40, 30507008), (49, 24903680), (56, 21790720), (64, 19066880), (70, 17432576), (76, 16056320), (80, 15253504), (95, 12845056), (98, 12451840), (112, 10895360), (128, 9533440), (133, 9175040), (140, 8716288), (152, 8028160), (160, 7626752), (190, 6422528), (196, 6225920), (224, 5447680), (245, 4980736), (256, 4766720), (266, 4587520), (280, 4358144), (304, 4014080), (320, 3813376), (380, 3211264), (392, 3112960), (448, 2723840), (490, 2490368), (512, 2383360), (532, 2293760), (560, 2179072), (608, 2007040), (640, 1906688), (665, 1835008), (760, 1605632), (784, 1556480), (896, 1361920), (931, 1310720), (980, 1245184), (1024, 1191680), (1064, 1146880), (1120, 1089536), (1216, 1003520), (1280, 953344), (1330, 917504), (1520, 802816), (1568, 778240), (1792, 680960), (1862, 655360), (1960, 622592), (2048, 595840), (2128, 573440), (2240, 544768), (2432, 501760), (2560, 476672), (2660, 458752), (3040, 401408), (3136, 389120), (3584, 340480), (3724, 327680), (3920, 311296), (4096, 297920), (4256, 286720), (4480, 272384), (4655, 262144), (4864, 250880), (5120, 238336), (5320, 229376), (6080, 200704), (6272, 194560), (7168, 170240), (7448, 163840), (7840, 155648), (8192, 148960), (8512, 143360), (8960, 136192), (9310, 131072), (9728, 125440), (10240, 119168), (10640, 114688), (12160, 100352), (12544, 97280), (14336, 85120), (14896, 81920), (15680, 77824), (16384, 74480), (17024, 71680), (17920, 68096), (18620, 65536), (19456, 62720), (20480, 59584), (21280, 57344), (24320, 50176), (25088, 48640), (28672, 42560), (29792, 40960), (31360, 38912), (32768, 37240), (34048, 35840)]