20759760

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{1373}}^1$

素因数の和:1402

約数の個数: 160

約数和(自身を含む): 81780480

約数和(自身を除く): 61020720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1373, 1512, 1680, 1890, 2160, 2520, 2746, 3024, 3780, 4119, 5040, 5492, 6865, 7560, 8238, 9611, 10984, 12357, 13730, 15120, 16476, 19222, 20595, 21968, 24714, 27460, 28833, 32952, 37071, 38444, 41190, 48055, 49428, 54920, 57666, 61785, 65904, 74142, 76888, 82380, 86499, 96110, 98856, 109840, 115332, 123570, 144165, 148284, 153776, 164760, 172998, 185355, 192220, 197712, 230664, 247140, 259497, 288330, 296568, 329520, 345996, 370710, 384440, 432495, 461328, 494280, 518994, 576660, 593136, 691992, 741420, 768880, 864990, 988560, 1037988, 1153320, 1297485, 1383984, 1482840, 1729980, 2075976, 2306640, 2594970, 2965680, 3459960, 4151952, 5189940, 6919920, 10379880, 20759760]

約数ペア:

[(1, 20759760), (2, 10379880), (3, 6919920), (4, 5189940), (5, 4151952), (6, 3459960), (7, 2965680), (8, 2594970), (9, 2306640), (10, 2075976), (12, 1729980), (14, 1482840), (15, 1383984), (16, 1297485), (18, 1153320), (20, 1037988), (21, 988560), (24, 864990), (27, 768880), (28, 741420), (30, 691992), (35, 593136), (36, 576660), (40, 518994), (42, 494280), (45, 461328), (48, 432495), (54, 384440), (56, 370710), (60, 345996), (63, 329520), (70, 296568), (72, 288330), (80, 259497), (84, 247140), (90, 230664), (105, 197712), (108, 192220), (112, 185355), (120, 172998), (126, 164760), (135, 153776), (140, 148284), (144, 144165), (168, 123570), (180, 115332), (189, 109840), (210, 98856), (216, 96110), (240, 86499), (252, 82380), (270, 76888), (280, 74142), (315, 65904), (336, 61785), (360, 57666), (378, 54920), (420, 49428), (432, 48055), (504, 41190), (540, 38444), (560, 37071), (630, 32952), (720, 28833), (756, 27460), (840, 24714), (945, 21968), (1008, 20595), (1080, 19222), (1260, 16476), (1373, 15120), (1512, 13730), (1680, 12357), (1890, 10984), (2160, 9611), (2520, 8238), (2746, 7560), (3024, 6865), (3780, 5492), (4119, 5040)]