20825280

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{1033}}^1$

素因数の和:1063

約数の個数: 168

約数和(自身を含む): 81942432

約数和(自身を除く): 61117152

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, 1008, 1033, 1120, 1260, 1344, 1440, 1680, 2016, 2066, 2240, 2520, 2880, 3099, 3360, 4032, 4132, 5040, 5165, 6198, 6720, 7231, 8264, 9297, 10080, 10330, 12396, 14462, 15495, 16528, 18594, 20160, 20660, 21693, 24792, 28924, 30990, 33056, 36155, 37188, 41320, 43386, 46485, 49584, 57848, 61980, 65079, 66112, 72310, 74376, 82640, 86772, 92970, 99168, 108465, 115696, 123960, 130158, 144620, 148752, 165280, 173544, 185940, 198336, 216930, 231392, 247920, 260316, 289240, 297504, 325395, 330560, 347088, 371880, 433860, 462784, 495840, 520632, 578480, 595008, 650790, 694176, 743760, 867720, 991680, 1041264, 1156960, 1301580, 1388352, 1487520, 1735440, 2082528, 2313920, 2603160, 2975040, 3470880, 4165056, 5206320, 6941760, 10412640, 20825280]

約数ペア:

[(1, 20825280), (2, 10412640), (3, 6941760), (4, 5206320), (5, 4165056), (6, 3470880), (7, 2975040), (8, 2603160), (9, 2313920), (10, 2082528), (12, 1735440), (14, 1487520), (15, 1388352), (16, 1301580), (18, 1156960), (20, 1041264), (21, 991680), (24, 867720), (28, 743760), (30, 694176), (32, 650790), (35, 595008), (36, 578480), (40, 520632), (42, 495840), (45, 462784), (48, 433860), (56, 371880), (60, 347088), (63, 330560), (64, 325395), (70, 297504), (72, 289240), (80, 260316), (84, 247920), (90, 231392), (96, 216930), (105, 198336), (112, 185940), (120, 173544), (126, 165280), (140, 148752), (144, 144620), (160, 130158), (168, 123960), (180, 115696), (192, 108465), (210, 99168), (224, 92970), (240, 86772), (252, 82640), (280, 74376), (288, 72310), (315, 66112), (320, 65079), (336, 61980), (360, 57848), (420, 49584), (448, 46485), (480, 43386), (504, 41320), (560, 37188), (576, 36155), (630, 33056), (672, 30990), (720, 28924), (840, 24792), (960, 21693), (1008, 20660), (1033, 20160), (1120, 18594), (1260, 16528), (1344, 15495), (1440, 14462), (1680, 12396), (2016, 10330), (2066, 10080), (2240, 9297), (2520, 8264), (2880, 7231), (3099, 6720), (3360, 6198), (4032, 5165), (4132, 5040)]