19736820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:262

約数の個数: 144

約数和(自身を含む): 65520000

約数和(自身を除く): 45783180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 29, 30, 36, 38, 45, 57, 58, 60, 76, 87, 90, 95, 114, 116, 145, 171, 174, 180, 190, 199, 228, 261, 285, 290, 342, 348, 380, 398, 435, 522, 551, 570, 580, 597, 684, 796, 855, 870, 995, 1044, 1102, 1140, 1194, 1305, 1653, 1710, 1740, 1791, 1990, 2204, 2388, 2610, 2755, 2985, 3306, 3420, 3582, 3781, 3980, 4959, 5220, 5510, 5771, 5970, 6612, 7164, 7562, 8265, 8955, 9918, 11020, 11343, 11542, 11940, 15124, 16530, 17313, 17910, 18905, 19836, 22686, 23084, 24795, 28855, 33060, 34029, 34626, 35820, 37810, 45372, 49590, 51939, 56715, 57710, 68058, 69252, 75620, 86565, 99180, 103878, 109649, 113430, 115420, 136116, 170145, 173130, 207756, 219298, 226860, 259695, 328947, 340290, 346260, 438596, 519390, 548245, 657894, 680580, 986841, 1038780, 1096490, 1315788, 1644735, 1973682, 2192980, 3289470, 3947364, 4934205, 6578940, 9868410, 19736820]

約数ペア:

[(1, 19736820), (2, 9868410), (3, 6578940), (4, 4934205), (5, 3947364), (6, 3289470), (9, 2192980), (10, 1973682), (12, 1644735), (15, 1315788), (18, 1096490), (19, 1038780), (20, 986841), (29, 680580), (30, 657894), (36, 548245), (38, 519390), (45, 438596), (57, 346260), (58, 340290), (60, 328947), (76, 259695), (87, 226860), (90, 219298), (95, 207756), (114, 173130), (116, 170145), (145, 136116), (171, 115420), (174, 113430), (180, 109649), (190, 103878), (199, 99180), (228, 86565), (261, 75620), (285, 69252), (290, 68058), (342, 57710), (348, 56715), (380, 51939), (398, 49590), (435, 45372), (522, 37810), (551, 35820), (570, 34626), (580, 34029), (597, 33060), (684, 28855), (796, 24795), (855, 23084), (870, 22686), (995, 19836), (1044, 18905), (1102, 17910), (1140, 17313), (1194, 16530), (1305, 15124), (1653, 11940), (1710, 11542), (1740, 11343), (1791, 11020), (1990, 9918), (2204, 8955), (2388, 8265), (2610, 7562), (2755, 7164), (2985, 6612), (3306, 5970), (3420, 5771), (3582, 5510), (3781, 5220), (3980, 4959)]