About the Number

81012240

81012239 ← → 81012241

2進数表記:100110101000010011000010000

漢数字表記:八千百一万二千二百四十

素因数分解:

2 4 × 3 2 × 5 1 × 37 1 × 3041 1

素因数の和:3097
約数の個数: 120
約数和(自身を含む): 279511128
約数和(自身を除く): 198498888

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 37, 40, 45, 48, 60, 72, 74, 80, 90, 111, 120, 144, 148, 180, 185, 222, 240, 296, 333, 360, 370, 444, 555, 592, 666, 720, 740, 888, 1110, 1332, 1480, 1665, 1776, 2220, 2664, 2960, 3041, 3330, 4440, 5328, 6082, 6660, 8880, 9123, 12164, 13320, 15205, 18246, 24328, 26640, 27369, 30410, 36492, 45615, 48656, 54738, 60820, 72984, 91230, 109476, 112517, 121640, 136845, 145968, 182460, 218952, 225034, 243280, 273690, 337551, 364920, 437904, 450068, 547380, 562585, 675102, 729840, 900136, 1012653, 1094760, 1125170, 1350204, 1687755, 1800272, 2025306, 2189520, 2250340, 2700408, 3375510, 4050612, 4500680, 5063265, 5400816, 6751020, 8101224, 9001360, 10126530, 13502040, 16202448, 20253060, 27004080, 40506120, 81012240]

約数ペア:
[(1, 81012240), (2, 40506120), (3, 27004080), (4, 20253060), (5, 16202448), (6, 13502040), (8, 10126530), (9, 9001360), (10, 8101224), (12, 6751020), (15, 5400816), (16, 5063265), (18, 4500680), (20, 4050612), (24, 3375510), (30, 2700408), (36, 2250340), (37, 2189520), (40, 2025306), (45, 1800272), (48, 1687755), (60, 1350204), (72, 1125170), (74, 1094760), (80, 1012653), (90, 900136), (111, 729840), (120, 675102), (144, 562585), (148, 547380), (180, 450068), (185, 437904), (222, 364920), (240, 337551), (296, 273690), (333, 243280), (360, 225034), (370, 218952), (444, 182460), (555, 145968), (592, 136845), (666, 121640), (720, 112517), (740, 109476), (888, 91230), (1110, 72984), (1332, 60820), (1480, 54738), (1665, 48656), (1776, 45615), (2220, 36492), (2664, 30410), (2960, 27369), (3041, 26640), (3330, 24328), (4440, 18246), (5328, 15205), (6082, 13320), (6660, 12164), (8880, 9123)]

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