20742140160

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{257219}}^1$

素因数の和:257253

約数の個数: 216

約数和(自身を含む): 82018198080

約数和(自身を除く): 61276057920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1120, 1152, 1260, 1280, 1344, 1440, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2688, 2880, 3360, 3840, 4032, 4480, 5040, 5376, 5760, 6720, 8064, 8960, 10080, 11520, 13440, 16128, 20160, 26880, 40320, 80640, 257219, 514438, 771657, 1028876, 1286095, 1543314, 1800533, 2057752, 2314971, 2572190, 3086628, 3601066, 3858285, 4115504, 4629942, 5144380, 5401599, 6173256, 7202132, 7716570, 8231008, 9002665, 9259884, 10288760, 10803198, 11574855, 12346512, 14404264, 15433140, 16204797, 16462016, 18005330, 18519768, 20577520, 21606396, 23149710, 24693024, 27007995, 28808528, 30866280, 32409594, 32924032, 36010660, 37039536, 41155040, 43212792, 46299420, 49386048, 54015990, 57617056, 61732560, 64819188, 65848064, 72021320, 74079072, 81023985, 82310080, 86425584, 92598840, 98772096, 108031980, 115234112, 123465120, 129638376, 144042640, 148158144, 162047970, 164620160, 172851168, 185197680, 197544192, 216063960, 230468224, 246930240, 259276752, 288085280, 296316288, 324095940, 329240320, 345702336, 370395360, 432127920, 460936448, 493860480, 518553504, 576170560, 592632576, 648191880, 691404672, 740790720, 864255840, 987720960, 1037107008, 1152341120, 1296383760, 1382809344, 1481581440, 1728511680, 2074214016, 2304682240, 2592767520, 2963162880, 3457023360, 4148428032, 5185535040, 6914046720, 10371070080, 20742140160]

約数ペア:

[(1, 20742140160), (2, 10371070080), (3, 6914046720), (4, 5185535040), (5, 4148428032), (6, 3457023360), (7, 2963162880), (8, 2592767520), (9, 2304682240), (10, 2074214016), (12, 1728511680), (14, 1481581440), (15, 1382809344), (16, 1296383760), (18, 1152341120), (20, 1037107008), (21, 987720960), (24, 864255840), (28, 740790720), (30, 691404672), (32, 648191880), (35, 592632576), (36, 576170560), (40, 518553504), (42, 493860480), (45, 460936448), (48, 432127920), (56, 370395360), (60, 345702336), (63, 329240320), (64, 324095940), (70, 296316288), (72, 288085280), (80, 259276752), (84, 246930240), (90, 230468224), (96, 216063960), (105, 197544192), (112, 185197680), (120, 172851168), (126, 164620160), (128, 162047970), (140, 148158144), (144, 144042640), (160, 129638376), (168, 123465120), (180, 115234112), (192, 108031980), (210, 98772096), (224, 92598840), (240, 86425584), (252, 82310080), (256, 81023985), (280, 74079072), (288, 72021320), (315, 65848064), (320, 64819188), (336, 61732560), (360, 57617056), (384, 54015990), (420, 49386048), (448, 46299420), (480, 43212792), (504, 41155040), (560, 37039536), (576, 36010660), (630, 32924032), (640, 32409594), (672, 30866280), (720, 28808528), (768, 27007995), (840, 24693024), (896, 23149710), (960, 21606396), (1008, 20577520), (1120, 18519768), (1152, 18005330), (1260, 16462016), (1280, 16204797), (1344, 15433140), (1440, 14404264), (1680, 12346512), (1792, 11574855), (1920, 10803198), (2016, 10288760), (2240, 9259884), (2304, 9002665), (2520, 8231008), (2688, 7716570), (2880, 7202132), (3360, 6173256), (3840, 5401599), (4032, 5144380), (4480, 4629942), (5040, 4115504), (5376, 3858285), (5760, 3601066), (6720, 3086628), (8064, 2572190), (8960, 2314971), (10080, 2057752), (11520, 1800533), (13440, 1543314), (16128, 1286095), (20160, 1028876), (26880, 771657), (40320, 514438), (80640, 257219)]