20968740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:163

約数の個数: 192

約数和(自身を含む): 73382400

約数和(自身を除く): 52413660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 29, 30, 36, 39, 45, 52, 54, 58, 60, 65, 78, 87, 90, 103, 108, 116, 117, 130, 135, 145, 156, 174, 180, 195, 206, 234, 260, 261, 270, 290, 309, 348, 351, 377, 390, 412, 435, 468, 515, 522, 540, 580, 585, 618, 702, 754, 780, 783, 870, 927, 1030, 1044, 1131, 1170, 1236, 1305, 1339, 1404, 1508, 1545, 1566, 1740, 1755, 1854, 1885, 2060, 2262, 2340, 2610, 2678, 2781, 2987, 3090, 3132, 3393, 3510, 3708, 3770, 3915, 4017, 4524, 4635, 5220, 5356, 5562, 5655, 5974, 6180, 6695, 6786, 7020, 7540, 7830, 8034, 8961, 9270, 10179, 11124, 11310, 11948, 12051, 13390, 13572, 13905, 14935, 15660, 16068, 16965, 17922, 18540, 20085, 20358, 22620, 24102, 26780, 26883, 27810, 29870, 33930, 35844, 36153, 38831, 40170, 40716, 44805, 48204, 50895, 53766, 55620, 59740, 60255, 67860, 72306, 77662, 80340, 80649, 89610, 101790, 107532, 116493, 120510, 134415, 144612, 155324, 161298, 179220, 180765, 194155, 203580, 232986, 241020, 268830, 322596, 349479, 361530, 388310, 403245, 465972, 537660, 582465, 698958, 723060, 776620, 806490, 1048437, 1164930, 1397916, 1612980, 1747395, 2096874, 2329860, 3494790, 4193748, 5242185, 6989580, 10484370, 20968740]

約数ペア:

[(1, 20968740), (2, 10484370), (3, 6989580), (4, 5242185), (5, 4193748), (6, 3494790), (9, 2329860), (10, 2096874), (12, 1747395), (13, 1612980), (15, 1397916), (18, 1164930), (20, 1048437), (26, 806490), (27, 776620), (29, 723060), (30, 698958), (36, 582465), (39, 537660), (45, 465972), (52, 403245), (54, 388310), (58, 361530), (60, 349479), (65, 322596), (78, 268830), (87, 241020), (90, 232986), (103, 203580), (108, 194155), (116, 180765), (117, 179220), (130, 161298), (135, 155324), (145, 144612), (156, 134415), (174, 120510), (180, 116493), (195, 107532), (206, 101790), (234, 89610), (260, 80649), (261, 80340), (270, 77662), (290, 72306), (309, 67860), (348, 60255), (351, 59740), (377, 55620), (390, 53766), (412, 50895), (435, 48204), (468, 44805), (515, 40716), (522, 40170), (540, 38831), (580, 36153), (585, 35844), (618, 33930), (702, 29870), (754, 27810), (780, 26883), (783, 26780), (870, 24102), (927, 22620), (1030, 20358), (1044, 20085), (1131, 18540), (1170, 17922), (1236, 16965), (1305, 16068), (1339, 15660), (1404, 14935), (1508, 13905), (1545, 13572), (1566, 13390), (1740, 12051), (1755, 11948), (1854, 11310), (1885, 11124), (2060, 10179), (2262, 9270), (2340, 8961), (2610, 8034), (2678, 7830), (2781, 7540), (2987, 7020), (3090, 6786), (3132, 6695), (3393, 6180), (3510, 5974), (3708, 5655), (3770, 5562), (3915, 5356), (4017, 5220), (4524, 4635)]