81154440

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{461}}^1$

素因数の和:644

約数の個数: 128

約数和(自身を含む): 272764800

約数和(自身を除く): 191610360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 163, 180, 216, 270, 326, 360, 461, 489, 540, 652, 815, 922, 978, 1080, 1304, 1383, 1467, 1630, 1844, 1956, 2305, 2445, 2766, 2934, 3260, 3688, 3912, 4149, 4401, 4610, 4890, 5532, 5868, 6520, 6915, 7335, 8298, 8802, 9220, 9780, 11064, 11736, 12447, 13830, 14670, 16596, 17604, 18440, 19560, 20745, 22005, 24894, 27660, 29340, 33192, 35208, 41490, 44010, 49788, 55320, 58680, 62235, 75143, 82980, 88020, 99576, 124470, 150286, 165960, 176040, 225429, 248940, 300572, 375715, 450858, 497880, 601144, 676287, 751430, 901716, 1127145, 1352574, 1502860, 1803432, 2028861, 2254290, 2705148, 3005720, 3381435, 4057722, 4508580, 5410296, 6762870, 8115444, 9017160, 10144305, 13525740, 16230888, 20288610, 27051480, 40577220, 81154440]

約数ペア:

[(1, 81154440), (2, 40577220), (3, 27051480), (4, 20288610), (5, 16230888), (6, 13525740), (8, 10144305), (9, 9017160), (10, 8115444), (12, 6762870), (15, 5410296), (18, 4508580), (20, 4057722), (24, 3381435), (27, 3005720), (30, 2705148), (36, 2254290), (40, 2028861), (45, 1803432), (54, 1502860), (60, 1352574), (72, 1127145), (90, 901716), (108, 751430), (120, 676287), (135, 601144), (163, 497880), (180, 450858), (216, 375715), (270, 300572), (326, 248940), (360, 225429), (461, 176040), (489, 165960), (540, 150286), (652, 124470), (815, 99576), (922, 88020), (978, 82980), (1080, 75143), (1304, 62235), (1383, 58680), (1467, 55320), (1630, 49788), (1844, 44010), (1956, 41490), (2305, 35208), (2445, 33192), (2766, 29340), (2934, 27660), (3260, 24894), (3688, 22005), (3912, 20745), (4149, 19560), (4401, 18440), (4610, 17604), (4890, 16596), (5532, 14670), (5868, 13830), (6520, 12447), (6915, 11736), (7335, 11064), (8298, 9780), (8802, 9220)]