20335320

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1030

約数の個数: 128

約数和(自身を含む): 71424000

約数和(自身を除く): 51088680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 991, 1026, 1080, 1140, 1368, 1710, 1982, 2052, 2280, 2565, 2973, 3420, 3964, 4104, 4955, 5130, 5946, 6840, 7928, 8919, 9910, 10260, 11892, 14865, 17838, 18829, 19820, 20520, 23784, 26757, 29730, 35676, 37658, 39640, 44595, 53514, 56487, 59460, 71352, 75316, 89190, 94145, 107028, 112974, 118920, 133785, 150632, 169461, 178380, 188290, 214056, 225948, 267570, 282435, 338922, 356760, 376580, 451896, 508383, 535140, 564870, 677844, 753160, 847305, 1016766, 1070280, 1129740, 1355688, 1694610, 2033532, 2259480, 2541915, 3389220, 4067064, 5083830, 6778440, 10167660, 20335320]

約数ペア:

[(1, 20335320), (2, 10167660), (3, 6778440), (4, 5083830), (5, 4067064), (6, 3389220), (8, 2541915), (9, 2259480), (10, 2033532), (12, 1694610), (15, 1355688), (18, 1129740), (19, 1070280), (20, 1016766), (24, 847305), (27, 753160), (30, 677844), (36, 564870), (38, 535140), (40, 508383), (45, 451896), (54, 376580), (57, 356760), (60, 338922), (72, 282435), (76, 267570), (90, 225948), (95, 214056), (108, 188290), (114, 178380), (120, 169461), (135, 150632), (152, 133785), (171, 118920), (180, 112974), (190, 107028), (216, 94145), (228, 89190), (270, 75316), (285, 71352), (342, 59460), (360, 56487), (380, 53514), (456, 44595), (513, 39640), (540, 37658), (570, 35676), (684, 29730), (760, 26757), (855, 23784), (991, 20520), (1026, 19820), (1080, 18829), (1140, 17838), (1368, 14865), (1710, 11892), (1982, 10260), (2052, 9910), (2280, 8919), (2565, 7928), (2973, 6840), (3420, 5946), (3964, 5130), (4104, 4955)]