20427660

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:229

約数の個数: 192

約数和(自身を含む): 73382400

約数和(自身を除く): 52954740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 27, 30, 33, 36, 38, 44, 45, 54, 55, 57, 60, 66, 76, 90, 95, 99, 108, 110, 114, 132, 135, 165, 171, 180, 181, 190, 198, 209, 220, 228, 270, 285, 297, 330, 342, 362, 380, 396, 418, 495, 513, 540, 543, 570, 594, 627, 660, 684, 724, 836, 855, 905, 990, 1026, 1045, 1086, 1140, 1188, 1254, 1485, 1629, 1710, 1810, 1881, 1980, 1991, 2052, 2090, 2172, 2508, 2565, 2715, 2970, 3135, 3258, 3420, 3439, 3620, 3762, 3982, 4180, 4887, 5130, 5430, 5643, 5940, 5973, 6270, 6516, 6878, 7524, 7964, 8145, 9405, 9774, 9955, 10260, 10317, 10860, 11286, 11946, 12540, 13756, 16290, 17195, 17919, 18810, 19548, 19910, 20634, 22572, 23892, 24435, 28215, 29865, 30951, 32580, 34390, 35838, 37620, 37829, 39820, 41268, 48870, 51585, 53757, 56430, 59730, 61902, 68780, 71676, 75658, 89595, 92853, 97740, 103170, 107514, 112860, 113487, 119460, 123804, 151316, 154755, 179190, 185706, 189145, 206340, 215028, 226974, 268785, 309510, 340461, 358380, 371412, 378290, 453948, 464265, 537570, 567435, 619020, 680922, 756580, 928530, 1021383, 1075140, 1134870, 1361844, 1702305, 1857060, 2042766, 2269740, 3404610, 4085532, 5106915, 6809220, 10213830, 20427660]

約数ペア:

[(1, 20427660), (2, 10213830), (3, 6809220), (4, 5106915), (5, 4085532), (6, 3404610), (9, 2269740), (10, 2042766), (11, 1857060), (12, 1702305), (15, 1361844), (18, 1134870), (19, 1075140), (20, 1021383), (22, 928530), (27, 756580), (30, 680922), (33, 619020), (36, 567435), (38, 537570), (44, 464265), (45, 453948), (54, 378290), (55, 371412), (57, 358380), (60, 340461), (66, 309510), (76, 268785), (90, 226974), (95, 215028), (99, 206340), (108, 189145), (110, 185706), (114, 179190), (132, 154755), (135, 151316), (165, 123804), (171, 119460), (180, 113487), (181, 112860), (190, 107514), (198, 103170), (209, 97740), (220, 92853), (228, 89595), (270, 75658), (285, 71676), (297, 68780), (330, 61902), (342, 59730), (362, 56430), (380, 53757), (396, 51585), (418, 48870), (495, 41268), (513, 39820), (540, 37829), (543, 37620), (570, 35838), (594, 34390), (627, 32580), (660, 30951), (684, 29865), (724, 28215), (836, 24435), (855, 23892), (905, 22572), (990, 20634), (1026, 19910), (1045, 19548), (1086, 18810), (1140, 17919), (1188, 17195), (1254, 16290), (1485, 13756), (1629, 12540), (1710, 11946), (1810, 11286), (1881, 10860), (1980, 10317), (1991, 10260), (2052, 9955), (2090, 9774), (2172, 9405), (2508, 8145), (2565, 7964), (2715, 7524), (2970, 6878), (3135, 6516), (3258, 6270), (3420, 5973), (3439, 5940), (3620, 5643), (3762, 5430), (3982, 5130), (4180, 4887)]