19701360

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{1303}}^1$

素因数の和:1332

約数の個数: 160

約数和(自身を含む): 77614080

約数和(自身を除く): 57912720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1303, 1512, 1680, 1890, 2160, 2520, 2606, 3024, 3780, 3909, 5040, 5212, 6515, 7560, 7818, 9121, 10424, 11727, 13030, 15120, 15636, 18242, 19545, 20848, 23454, 26060, 27363, 31272, 35181, 36484, 39090, 45605, 46908, 52120, 54726, 58635, 62544, 70362, 72968, 78180, 82089, 91210, 93816, 104240, 109452, 117270, 136815, 140724, 145936, 156360, 164178, 175905, 182420, 187632, 218904, 234540, 246267, 273630, 281448, 312720, 328356, 351810, 364840, 410445, 437808, 469080, 492534, 547260, 562896, 656712, 703620, 729680, 820890, 938160, 985068, 1094520, 1231335, 1313424, 1407240, 1641780, 1970136, 2189040, 2462670, 2814480, 3283560, 3940272, 4925340, 6567120, 9850680, 19701360]

約数ペア:

[(1, 19701360), (2, 9850680), (3, 6567120), (4, 4925340), (5, 3940272), (6, 3283560), (7, 2814480), (8, 2462670), (9, 2189040), (10, 1970136), (12, 1641780), (14, 1407240), (15, 1313424), (16, 1231335), (18, 1094520), (20, 985068), (21, 938160), (24, 820890), (27, 729680), (28, 703620), (30, 656712), (35, 562896), (36, 547260), (40, 492534), (42, 469080), (45, 437808), (48, 410445), (54, 364840), (56, 351810), (60, 328356), (63, 312720), (70, 281448), (72, 273630), (80, 246267), (84, 234540), (90, 218904), (105, 187632), (108, 182420), (112, 175905), (120, 164178), (126, 156360), (135, 145936), (140, 140724), (144, 136815), (168, 117270), (180, 109452), (189, 104240), (210, 93816), (216, 91210), (240, 82089), (252, 78180), (270, 72968), (280, 70362), (315, 62544), (336, 58635), (360, 54726), (378, 52120), (420, 46908), (432, 45605), (504, 39090), (540, 36484), (560, 35181), (630, 31272), (720, 27363), (756, 26060), (840, 23454), (945, 20848), (1008, 19545), (1080, 18242), (1260, 15636), (1303, 15120), (1512, 13030), (1680, 11727), (1890, 10424), (2160, 9121), (2520, 7818), (2606, 7560), (3024, 6515), (3780, 5212), (3909, 5040)]