1820385280

素因数分解:

$2^{13}\times 5^1\times 7^2\times {\mathrm{907}}^1$

素因数の和:952

約数の個数: 168

約数和(自身を含む): 5087511288

約数和(自身を除く): 3267126008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 512, 560, 640, 784, 896, 907, 980, 1024, 1120, 1280, 1568, 1792, 1814, 1960, 2048, 2240, 2560, 3136, 3584, 3628, 3920, 4096, 4480, 4535, 5120, 6272, 6349, 7168, 7256, 7840, 8192, 8960, 9070, 10240, 12544, 12698, 14336, 14512, 15680, 17920, 18140, 20480, 25088, 25396, 28672, 29024, 31360, 31745, 35840, 36280, 40960, 44443, 50176, 50792, 57344, 58048, 62720, 63490, 71680, 72560, 88886, 100352, 101584, 116096, 125440, 126980, 143360, 145120, 177772, 200704, 203168, 222215, 232192, 250880, 253960, 286720, 290240, 355544, 401408, 406336, 444430, 464384, 501760, 507920, 580480, 711088, 812672, 888860, 928768, 1003520, 1015840, 1160960, 1422176, 1625344, 1777720, 1857536, 2007040, 2031680, 2321920, 2844352, 3250688, 3555440, 3715072, 4063360, 4643840, 5688704, 6501376, 7110880, 7430144, 8126720, 9287680, 11377408, 13002752, 14221760, 16253440, 18575360, 22754816, 26005504, 28443520, 32506880, 37150720, 45509632, 52011008, 56887040, 65013760, 91019264, 113774080, 130027520, 182038528, 227548160, 260055040, 364077056, 455096320, 910192640, 1820385280]

約数ペア:

[(1, 1820385280), (2, 910192640), (4, 455096320), (5, 364077056), (7, 260055040), (8, 227548160), (10, 182038528), (14, 130027520), (16, 113774080), (20, 91019264), (28, 65013760), (32, 56887040), (35, 52011008), (40, 45509632), (49, 37150720), (56, 32506880), (64, 28443520), (70, 26005504), (80, 22754816), (98, 18575360), (112, 16253440), (128, 14221760), (140, 13002752), (160, 11377408), (196, 9287680), (224, 8126720), (245, 7430144), (256, 7110880), (280, 6501376), (320, 5688704), (392, 4643840), (448, 4063360), (490, 3715072), (512, 3555440), (560, 3250688), (640, 2844352), (784, 2321920), (896, 2031680), (907, 2007040), (980, 1857536), (1024, 1777720), (1120, 1625344), (1280, 1422176), (1568, 1160960), (1792, 1015840), (1814, 1003520), (1960, 928768), (2048, 888860), (2240, 812672), (2560, 711088), (3136, 580480), (3584, 507920), (3628, 501760), (3920, 464384), (4096, 444430), (4480, 406336), (4535, 401408), (5120, 355544), (6272, 290240), (6349, 286720), (7168, 253960), (7256, 250880), (7840, 232192), (8192, 222215), (8960, 203168), (9070, 200704), (10240, 177772), (12544, 145120), (12698, 143360), (14336, 126980), (14512, 125440), (15680, 116096), (17920, 101584), (18140, 100352), (20480, 88886), (25088, 72560), (25396, 71680), (28672, 63490), (29024, 62720), (31360, 58048), (31745, 57344), (35840, 50792), (36280, 50176), (40960, 44443)]