81517800

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1493}}^1$

素因数の和:1532

約数の個数: 192

約数和(自身を含む): 311230080

約数和(自身を除く): 229712280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 25, 26, 28, 30, 35, 39, 40, 42, 50, 52, 56, 60, 65, 70, 75, 78, 84, 91, 100, 104, 105, 120, 130, 140, 150, 156, 168, 175, 182, 195, 200, 210, 260, 273, 280, 300, 312, 325, 350, 364, 390, 420, 455, 520, 525, 546, 600, 650, 700, 728, 780, 840, 910, 975, 1050, 1092, 1300, 1365, 1400, 1493, 1560, 1820, 1950, 2100, 2184, 2275, 2600, 2730, 2986, 3640, 3900, 4200, 4479, 4550, 5460, 5972, 6825, 7465, 7800, 8958, 9100, 10451, 10920, 11944, 13650, 14930, 17916, 18200, 19409, 20902, 22395, 27300, 29860, 31353, 35832, 37325, 38818, 41804, 44790, 52255, 54600, 58227, 59720, 62706, 74650, 77636, 83608, 89580, 97045, 104510, 111975, 116454, 125412, 135863, 149300, 155272, 156765, 179160, 194090, 209020, 223950, 232908, 250824, 261275, 271726, 291135, 298600, 313530, 388180, 407589, 418040, 447900, 465816, 485225, 522550, 543452, 582270, 627060, 679315, 776360, 783825, 815178, 895800, 970450, 1045100, 1086904, 1164540, 1254120, 1358630, 1455675, 1567650, 1630356, 1940900, 2037945, 2090200, 2329080, 2717260, 2911350, 3135300, 3260712, 3396575, 3881800, 4075890, 5434520, 5822700, 6270600, 6793150, 8151780, 10189725, 11645400, 13586300, 16303560, 20379450, 27172600, 40758900, 81517800]

約数ペア:

[(1, 81517800), (2, 40758900), (3, 27172600), (4, 20379450), (5, 16303560), (6, 13586300), (7, 11645400), (8, 10189725), (10, 8151780), (12, 6793150), (13, 6270600), (14, 5822700), (15, 5434520), (20, 4075890), (21, 3881800), (24, 3396575), (25, 3260712), (26, 3135300), (28, 2911350), (30, 2717260), (35, 2329080), (39, 2090200), (40, 2037945), (42, 1940900), (50, 1630356), (52, 1567650), (56, 1455675), (60, 1358630), (65, 1254120), (70, 1164540), (75, 1086904), (78, 1045100), (84, 970450), (91, 895800), (100, 815178), (104, 783825), (105, 776360), (120, 679315), (130, 627060), (140, 582270), (150, 543452), (156, 522550), (168, 485225), (175, 465816), (182, 447900), (195, 418040), (200, 407589), (210, 388180), (260, 313530), (273, 298600), (280, 291135), (300, 271726), (312, 261275), (325, 250824), (350, 232908), (364, 223950), (390, 209020), (420, 194090), (455, 179160), (520, 156765), (525, 155272), (546, 149300), (600, 135863), (650, 125412), (700, 116454), (728, 111975), (780, 104510), (840, 97045), (910, 89580), (975, 83608), (1050, 77636), (1092, 74650), (1300, 62706), (1365, 59720), (1400, 58227), (1493, 54600), (1560, 52255), (1820, 44790), (1950, 41804), (2100, 38818), (2184, 37325), (2275, 35832), (2600, 31353), (2730, 29860), (2986, 27300), (3640, 22395), (3900, 20902), (4200, 19409), (4479, 18200), (4550, 17916), (5460, 14930), (5972, 13650), (6825, 11944), (7465, 10920), (7800, 10451), (8958, 9100)]