1981023840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{20533}}^1$

素因数の和:20621

約数の個数: 144

約数和(自身を含む): 6861477168

約数和(自身を除く): 4880453328

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 67, 72, 80, 90, 96, 120, 134, 144, 160, 180, 201, 240, 268, 288, 335, 360, 402, 480, 536, 603, 670, 720, 804, 1005, 1072, 1206, 1340, 1440, 1608, 2010, 2144, 2412, 2680, 3015, 3216, 4020, 4824, 5360, 6030, 6432, 8040, 9648, 10720, 12060, 16080, 19296, 20533, 24120, 32160, 41066, 48240, 61599, 82132, 96480, 102665, 123198, 164264, 184797, 205330, 246396, 307995, 328528, 369594, 410660, 492792, 615990, 657056, 739188, 821320, 923985, 985584, 1231980, 1375711, 1478376, 1642640, 1847970, 1971168, 2463960, 2751422, 2956752, 3285280, 3695940, 4127133, 4927920, 5502844, 5913504, 6878555, 7391880, 8254266, 9855840, 11005688, 12381399, 13757110, 14783760, 16508532, 20635665, 22011376, 24762798, 27514220, 29567520, 33017064, 41271330, 44022752, 49525596, 55028440, 61906995, 66034128, 82542660, 99051192, 110056880, 123813990, 132068256, 165085320, 198102384, 220113760, 247627980, 330170640, 396204768, 495255960, 660341280, 990511920, 1981023840]

約数ペア:

[(1, 1981023840), (2, 990511920), (3, 660341280), (4, 495255960), (5, 396204768), (6, 330170640), (8, 247627980), (9, 220113760), (10, 198102384), (12, 165085320), (15, 132068256), (16, 123813990), (18, 110056880), (20, 99051192), (24, 82542660), (30, 66034128), (32, 61906995), (36, 55028440), (40, 49525596), (45, 44022752), (48, 41271330), (60, 33017064), (67, 29567520), (72, 27514220), (80, 24762798), (90, 22011376), (96, 20635665), (120, 16508532), (134, 14783760), (144, 13757110), (160, 12381399), (180, 11005688), (201, 9855840), (240, 8254266), (268, 7391880), (288, 6878555), (335, 5913504), (360, 5502844), (402, 4927920), (480, 4127133), (536, 3695940), (603, 3285280), (670, 2956752), (720, 2751422), (804, 2463960), (1005, 1971168), (1072, 1847970), (1206, 1642640), (1340, 1478376), (1440, 1375711), (1608, 1231980), (2010, 985584), (2144, 923985), (2412, 821320), (2680, 739188), (3015, 657056), (3216, 615990), (4020, 492792), (4824, 410660), (5360, 369594), (6030, 328528), (6432, 307995), (8040, 246396), (9648, 205330), (10720, 184797), (12060, 164264), (16080, 123198), (19296, 102665), (20533, 96480), (24120, 82132), (32160, 61599), (41066, 48240)]