20191080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2$

素因数の和:120

約数の個数: 192

約数和(自身を含む): 76325760

約数和(自身を除く): 56134680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 43, 52, 56, 60, 65, 70, 78, 84, 86, 91, 104, 105, 120, 129, 130, 140, 156, 168, 172, 182, 195, 210, 215, 258, 260, 273, 280, 301, 312, 344, 364, 390, 420, 430, 455, 516, 520, 546, 559, 602, 645, 728, 780, 840, 860, 903, 910, 1032, 1092, 1118, 1204, 1290, 1365, 1505, 1560, 1677, 1720, 1806, 1820, 1849, 2184, 2236, 2408, 2580, 2730, 2795, 3010, 3354, 3612, 3640, 3698, 3913, 4472, 4515, 5160, 5460, 5547, 5590, 6020, 6708, 7224, 7396, 7826, 8385, 9030, 9245, 10920, 11094, 11180, 11739, 12040, 12943, 13416, 14792, 15652, 16770, 18060, 18490, 19565, 22188, 22360, 23478, 24037, 25886, 27735, 31304, 33540, 36120, 36980, 38829, 39130, 44376, 46956, 48074, 51772, 55470, 58695, 64715, 67080, 72111, 73960, 77658, 78260, 93912, 96148, 103544, 110940, 117390, 120185, 129430, 144222, 155316, 156520, 168259, 192296, 194145, 221880, 234780, 240370, 258860, 288444, 310632, 336518, 360555, 388290, 469560, 480740, 504777, 517720, 576888, 673036, 721110, 776580, 841295, 961480, 1009554, 1346072, 1442220, 1553160, 1682590, 2019108, 2523885, 2884440, 3365180, 4038216, 5047770, 6730360, 10095540, 20191080]

約数ペア:

[(1, 20191080), (2, 10095540), (3, 6730360), (4, 5047770), (5, 4038216), (6, 3365180), (7, 2884440), (8, 2523885), (10, 2019108), (12, 1682590), (13, 1553160), (14, 1442220), (15, 1346072), (20, 1009554), (21, 961480), (24, 841295), (26, 776580), (28, 721110), (30, 673036), (35, 576888), (39, 517720), (40, 504777), (42, 480740), (43, 469560), (52, 388290), (56, 360555), (60, 336518), (65, 310632), (70, 288444), (78, 258860), (84, 240370), (86, 234780), (91, 221880), (104, 194145), (105, 192296), (120, 168259), (129, 156520), (130, 155316), (140, 144222), (156, 129430), (168, 120185), (172, 117390), (182, 110940), (195, 103544), (210, 96148), (215, 93912), (258, 78260), (260, 77658), (273, 73960), (280, 72111), (301, 67080), (312, 64715), (344, 58695), (364, 55470), (390, 51772), (420, 48074), (430, 46956), (455, 44376), (516, 39130), (520, 38829), (546, 36980), (559, 36120), (602, 33540), (645, 31304), (728, 27735), (780, 25886), (840, 24037), (860, 23478), (903, 22360), (910, 22188), (1032, 19565), (1092, 18490), (1118, 18060), (1204, 16770), (1290, 15652), (1365, 14792), (1505, 13416), (1560, 12943), (1677, 12040), (1720, 11739), (1806, 11180), (1820, 11094), (1849, 10920), (2184, 9245), (2236, 9030), (2408, 8385), (2580, 7826), (2730, 7396), (2795, 7224), (3010, 6708), (3354, 6020), (3612, 5590), (3640, 5547), (3698, 5460), (3913, 5160), (4472, 4515)]