263091920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:613

約数の個数: 160

約数和(自身を含む): 764951040

約数和(自身を除く): 501859120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 71, 80, 91, 104, 112, 130, 140, 142, 182, 208, 260, 280, 284, 355, 364, 455, 497, 509, 520, 560, 568, 710, 728, 910, 923, 994, 1018, 1040, 1136, 1420, 1456, 1820, 1846, 1988, 2036, 2485, 2545, 2840, 3563, 3640, 3692, 3976, 4072, 4615, 4970, 5090, 5680, 6461, 6617, 7126, 7280, 7384, 7952, 8144, 9230, 9940, 10180, 12922, 13234, 14252, 14768, 17815, 18460, 19880, 20360, 25844, 26468, 28504, 32305, 33085, 35630, 36139, 36920, 39760, 40720, 46319, 51688, 52936, 57008, 64610, 66170, 71260, 72278, 73840, 92638, 103376, 105872, 129220, 132340, 142520, 144556, 180695, 185276, 231595, 252973, 258440, 264680, 285040, 289112, 361390, 370552, 463190, 469807, 505946, 516880, 529360, 578224, 722780, 741104, 926380, 939614, 1011892, 1264865, 1445560, 1852760, 1879228, 2023784, 2349035, 2529730, 2891120, 3288649, 3705520, 3758456, 4047568, 4698070, 5059460, 6577298, 7516912, 9396140, 10118920, 13154596, 16443245, 18792280, 20237840, 26309192, 32886490, 37584560, 52618384, 65772980, 131545960, 263091920]

約数ペア:

[(1, 263091920), (2, 131545960), (4, 65772980), (5, 52618384), (7, 37584560), (8, 32886490), (10, 26309192), (13, 20237840), (14, 18792280), (16, 16443245), (20, 13154596), (26, 10118920), (28, 9396140), (35, 7516912), (40, 6577298), (52, 5059460), (56, 4698070), (65, 4047568), (70, 3758456), (71, 3705520), (80, 3288649), (91, 2891120), (104, 2529730), (112, 2349035), (130, 2023784), (140, 1879228), (142, 1852760), (182, 1445560), (208, 1264865), (260, 1011892), (280, 939614), (284, 926380), (355, 741104), (364, 722780), (455, 578224), (497, 529360), (509, 516880), (520, 505946), (560, 469807), (568, 463190), (710, 370552), (728, 361390), (910, 289112), (923, 285040), (994, 264680), (1018, 258440), (1040, 252973), (1136, 231595), (1420, 185276), (1456, 180695), (1820, 144556), (1846, 142520), (1988, 132340), (2036, 129220), (2485, 105872), (2545, 103376), (2840, 92638), (3563, 73840), (3640, 72278), (3692, 71260), (3976, 66170), (4072, 64610), (4615, 57008), (4970, 52936), (5090, 51688), (5680, 46319), (6461, 40720), (6617, 39760), (7126, 36920), (7280, 36139), (7384, 35630), (7952, 33085), (8144, 32305), (9230, 28504), (9940, 26468), (10180, 25844), (12922, 20360), (13234, 19880), (14252, 18460), (14768, 17815)]