20171211320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1279}}^1\times {\mathrm{2333}}^1$

素因数の和:3649

約数の個数: 96

約数和(自身を含む): 49204454400

約数和(自身を除く): 29033243080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1279, 1352, 1690, 2333, 2558, 3380, 4666, 5116, 6395, 6760, 9332, 10232, 11665, 12790, 16627, 18664, 23330, 25580, 30329, 33254, 46660, 51160, 60658, 66508, 83135, 93320, 121316, 133016, 151645, 166270, 216151, 242632, 303290, 332540, 394277, 432302, 606580, 665080, 788554, 864604, 1080755, 1213160, 1577108, 1729208, 1971385, 2161510, 2983907, 3154216, 3942770, 4323020, 5967814, 7885540, 8646040, 11935628, 14919535, 15771080, 23871256, 29839070, 38790791, 59678140, 77581582, 119356280, 155163164, 193953955, 310326328, 387907910, 504280283, 775815820, 1008560566, 1551631640, 2017121132, 2521401415, 4034242264, 5042802830, 10085605660, 20171211320]

約数ペア:

[(1, 20171211320), (2, 10085605660), (4, 5042802830), (5, 4034242264), (8, 2521401415), (10, 2017121132), (13, 1551631640), (20, 1008560566), (26, 775815820), (40, 504280283), (52, 387907910), (65, 310326328), (104, 193953955), (130, 155163164), (169, 119356280), (260, 77581582), (338, 59678140), (520, 38790791), (676, 29839070), (845, 23871256), (1279, 15771080), (1352, 14919535), (1690, 11935628), (2333, 8646040), (2558, 7885540), (3380, 5967814), (4666, 4323020), (5116, 3942770), (6395, 3154216), (6760, 2983907), (9332, 2161510), (10232, 1971385), (11665, 1729208), (12790, 1577108), (16627, 1213160), (18664, 1080755), (23330, 864604), (25580, 788554), (30329, 665080), (33254, 606580), (46660, 432302), (51160, 394277), (60658, 332540), (66508, 303290), (83135, 242632), (93320, 216151), (121316, 166270), (133016, 151645)]