638633520

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{126713}}^1$

素因数の和:126739

約数の個数: 120

約数和(自身を含む): 2451155616

約数和(自身を除く): 1812522096

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 126713, 253426, 380139, 506852, 633565, 760278, 886991, 1013704, 1140417, 1267130, 1520556, 1773982, 1900695, 2027408, 2280834, 2534260, 2660973, 3041112, 3547964, 3801390, 4434955, 4561668, 5068520, 5321946, 5702085, 6082224, 7095928, 7602780, 7982919, 8869910, 9123336, 10137040, 10643892, 11404170, 13304865, 14191856, 15205560, 15965838, 17739820, 18246672, 21287784, 22808340, 26609730, 30411120, 31931676, 35479640, 39914595, 42575568, 45616680, 53219460, 63863352, 70959280, 79829190, 91233360, 106438920, 127726704, 159658380, 212877840, 319316760, 638633520]

約数ペア:

[(1, 638633520), (2, 319316760), (3, 212877840), (4, 159658380), (5, 127726704), (6, 106438920), (7, 91233360), (8, 79829190), (9, 70959280), (10, 63863352), (12, 53219460), (14, 45616680), (15, 42575568), (16, 39914595), (18, 35479640), (20, 31931676), (21, 30411120), (24, 26609730), (28, 22808340), (30, 21287784), (35, 18246672), (36, 17739820), (40, 15965838), (42, 15205560), (45, 14191856), (48, 13304865), (56, 11404170), (60, 10643892), (63, 10137040), (70, 9123336), (72, 8869910), (80, 7982919), (84, 7602780), (90, 7095928), (105, 6082224), (112, 5702085), (120, 5321946), (126, 5068520), (140, 4561668), (144, 4434955), (168, 3801390), (180, 3547964), (210, 3041112), (240, 2660973), (252, 2534260), (280, 2280834), (315, 2027408), (336, 1900695), (360, 1773982), (420, 1520556), (504, 1267130), (560, 1140417), (630, 1013704), (720, 886991), (840, 760278), (1008, 633565), (1260, 506852), (1680, 380139), (2520, 253426), (5040, 126713)]