20099520

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{997}}^1$

素因数の和:1027

約数の個数: 168

約数和(自身を含む): 79089504

約数和(自身を除く): 58989984

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 997, 1008, 1120, 1260, 1344, 1440, 1680, 1994, 2016, 2240, 2520, 2880, 2991, 3360, 3988, 4032, 4985, 5040, 5982, 6720, 6979, 7976, 8973, 9970, 10080, 11964, 13958, 14955, 15952, 17946, 19940, 20160, 20937, 23928, 27916, 29910, 31904, 34895, 35892, 39880, 41874, 44865, 47856, 55832, 59820, 62811, 63808, 69790, 71784, 79760, 83748, 89730, 95712, 104685, 111664, 119640, 125622, 139580, 143568, 159520, 167496, 179460, 191424, 209370, 223328, 239280, 251244, 279160, 287136, 314055, 319040, 334992, 358920, 418740, 446656, 478560, 502488, 558320, 574272, 628110, 669984, 717840, 837480, 957120, 1004976, 1116640, 1256220, 1339968, 1435680, 1674960, 2009952, 2233280, 2512440, 2871360, 3349920, 4019904, 5024880, 6699840, 10049760, 20099520]

約数ペア:

[(1, 20099520), (2, 10049760), (3, 6699840), (4, 5024880), (5, 4019904), (6, 3349920), (7, 2871360), (8, 2512440), (9, 2233280), (10, 2009952), (12, 1674960), (14, 1435680), (15, 1339968), (16, 1256220), (18, 1116640), (20, 1004976), (21, 957120), (24, 837480), (28, 717840), (30, 669984), (32, 628110), (35, 574272), (36, 558320), (40, 502488), (42, 478560), (45, 446656), (48, 418740), (56, 358920), (60, 334992), (63, 319040), (64, 314055), (70, 287136), (72, 279160), (80, 251244), (84, 239280), (90, 223328), (96, 209370), (105, 191424), (112, 179460), (120, 167496), (126, 159520), (140, 143568), (144, 139580), (160, 125622), (168, 119640), (180, 111664), (192, 104685), (210, 95712), (224, 89730), (240, 83748), (252, 79760), (280, 71784), (288, 69790), (315, 63808), (320, 62811), (336, 59820), (360, 55832), (420, 47856), (448, 44865), (480, 41874), (504, 39880), (560, 35892), (576, 34895), (630, 31904), (672, 29910), (720, 27916), (840, 23928), (960, 20937), (997, 20160), (1008, 19940), (1120, 17946), (1260, 15952), (1344, 14955), (1440, 13958), (1680, 11964), (1994, 10080), (2016, 9970), (2240, 8973), (2520, 7976), (2880, 6979), (2991, 6720), (3360, 5982), (3988, 5040), (4032, 4985)]