1243217920

素因数分解:

$2^{17}\times 5^1\times 7^1\times {\mathrm{271}}^1$

素因数の和:317

約数の個数: 144

約数和(自身を含む): 3422539008

約数和(自身を除く): 2179321088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 271, 280, 320, 448, 512, 542, 560, 640, 896, 1024, 1084, 1120, 1280, 1355, 1792, 1897, 2048, 2168, 2240, 2560, 2710, 3584, 3794, 4096, 4336, 4480, 5120, 5420, 7168, 7588, 8192, 8672, 8960, 9485, 10240, 10840, 14336, 15176, 16384, 17344, 17920, 18970, 20480, 21680, 28672, 30352, 32768, 34688, 35840, 37940, 40960, 43360, 57344, 60704, 65536, 69376, 71680, 75880, 81920, 86720, 114688, 121408, 131072, 138752, 143360, 151760, 163840, 173440, 229376, 242816, 277504, 286720, 303520, 327680, 346880, 458752, 485632, 555008, 573440, 607040, 655360, 693760, 917504, 971264, 1110016, 1146880, 1214080, 1387520, 1942528, 2220032, 2293760, 2428160, 2775040, 3885056, 4440064, 4587520, 4856320, 5550080, 7770112, 8880128, 9712640, 11100160, 15540224, 17760256, 19425280, 22200320, 31080448, 35520512, 38850560, 44400640, 62160896, 77701120, 88801280, 124321792, 155402240, 177602560, 248643584, 310804480, 621608960, 1243217920]

約数ペア:

[(1, 1243217920), (2, 621608960), (4, 310804480), (5, 248643584), (7, 177602560), (8, 155402240), (10, 124321792), (14, 88801280), (16, 77701120), (20, 62160896), (28, 44400640), (32, 38850560), (35, 35520512), (40, 31080448), (56, 22200320), (64, 19425280), (70, 17760256), (80, 15540224), (112, 11100160), (128, 9712640), (140, 8880128), (160, 7770112), (224, 5550080), (256, 4856320), (271, 4587520), (280, 4440064), (320, 3885056), (448, 2775040), (512, 2428160), (542, 2293760), (560, 2220032), (640, 1942528), (896, 1387520), (1024, 1214080), (1084, 1146880), (1120, 1110016), (1280, 971264), (1355, 917504), (1792, 693760), (1897, 655360), (2048, 607040), (2168, 573440), (2240, 555008), (2560, 485632), (2710, 458752), (3584, 346880), (3794, 327680), (4096, 303520), (4336, 286720), (4480, 277504), (5120, 242816), (5420, 229376), (7168, 173440), (7588, 163840), (8192, 151760), (8672, 143360), (8960, 138752), (9485, 131072), (10240, 121408), (10840, 114688), (14336, 86720), (15176, 81920), (16384, 75880), (17344, 71680), (17920, 69376), (18970, 65536), (20480, 60704), (21680, 57344), (28672, 43360), (30352, 40960), (32768, 37940), (34688, 35840)]