20638172800

素因数分解:

$2^7\times 5^2\times 7^3\times {\mathrm{18803}}^1$

素因数の和:18848

約数の個数: 192

約数和(自身を含む): 59458248000

約数和(自身を除く): 38820075200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 80, 98, 100, 112, 128, 140, 160, 175, 196, 200, 224, 245, 280, 320, 343, 350, 392, 400, 448, 490, 560, 640, 686, 700, 784, 800, 896, 980, 1120, 1225, 1372, 1400, 1568, 1600, 1715, 1960, 2240, 2450, 2744, 2800, 3136, 3200, 3430, 3920, 4480, 4900, 5488, 5600, 6272, 6860, 7840, 8575, 9800, 10976, 11200, 13720, 15680, 17150, 18803, 19600, 21952, 22400, 27440, 31360, 34300, 37606, 39200, 43904, 54880, 68600, 75212, 78400, 94015, 109760, 131621, 137200, 150424, 156800, 188030, 219520, 263242, 274400, 300848, 376060, 470075, 526484, 548800, 601696, 658105, 752120, 921347, 940150, 1052968, 1097600, 1203392, 1316210, 1504240, 1842694, 1880300, 2105936, 2406784, 2632420, 3008480, 3290525, 3685388, 3760600, 4211872, 4606735, 5264840, 6016960, 6449429, 6581050, 7370776, 7521200, 8423744, 9213470, 10529680, 12033920, 12898858, 13162100, 14741552, 15042400, 16847488, 18426940, 21059360, 23033675, 25797716, 26324200, 29483104, 30084800, 32247145, 36853880, 42118720, 46067350, 51595432, 52648400, 58966208, 60169600, 64494290, 73707760, 84237440, 92134700, 103190864, 105296800, 117932416, 128988580, 147415520, 161235725, 184269400, 206381728, 210593600, 257977160, 294831040, 322471450, 368538800, 412763456, 421187200, 515954320, 589662080, 644942900, 737077600, 825526912, 1031908640, 1289885800, 1474155200, 2063817280, 2579771600, 2948310400, 4127634560, 5159543200, 10319086400, 20638172800]

約数ペア:

[(1, 20638172800), (2, 10319086400), (4, 5159543200), (5, 4127634560), (7, 2948310400), (8, 2579771600), (10, 2063817280), (14, 1474155200), (16, 1289885800), (20, 1031908640), (25, 825526912), (28, 737077600), (32, 644942900), (35, 589662080), (40, 515954320), (49, 421187200), (50, 412763456), (56, 368538800), (64, 322471450), (70, 294831040), (80, 257977160), (98, 210593600), (100, 206381728), (112, 184269400), (128, 161235725), (140, 147415520), (160, 128988580), (175, 117932416), (196, 105296800), (200, 103190864), (224, 92134700), (245, 84237440), (280, 73707760), (320, 64494290), (343, 60169600), (350, 58966208), (392, 52648400), (400, 51595432), (448, 46067350), (490, 42118720), (560, 36853880), (640, 32247145), (686, 30084800), (700, 29483104), (784, 26324200), (800, 25797716), (896, 23033675), (980, 21059360), (1120, 18426940), (1225, 16847488), (1372, 15042400), (1400, 14741552), (1568, 13162100), (1600, 12898858), (1715, 12033920), (1960, 10529680), (2240, 9213470), (2450, 8423744), (2744, 7521200), (2800, 7370776), (3136, 6581050), (3200, 6449429), (3430, 6016960), (3920, 5264840), (4480, 4606735), (4900, 4211872), (5488, 3760600), (5600, 3685388), (6272, 3290525), (6860, 3008480), (7840, 2632420), (8575, 2406784), (9800, 2105936), (10976, 1880300), (11200, 1842694), (13720, 1504240), (15680, 1316210), (17150, 1203392), (18803, 1097600), (19600, 1052968), (21952, 940150), (22400, 921347), (27440, 752120), (31360, 658105), (34300, 601696), (37606, 548800), (39200, 526484), (43904, 470075), (54880, 376060), (68600, 300848), (75212, 274400), (78400, 263242), (94015, 219520), (109760, 188030), (131621, 156800), (137200, 150424)]