About the Number

87382980

87382979 ← → 87382981

2進数表記:101001101010101101111000100

漢数字表記:八千七百三十八万二千九百八十

素因数分解:

2 2 × 3 2 × 5 1 × 23 1 × 21107 1

素因数の和:21145
約数の個数: 72
約数和(自身を含む): 276599232
約数和(自身を除く): 189216252

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 21107, 42214, 63321, 84428, 105535, 126642, 189963, 211070, 253284, 316605, 379926, 422140, 485461, 633210, 759852, 949815, 970922, 1266420, 1456383, 1899630, 1941844, 2427305, 2912766, 3799260, 4369149, 4854610, 5825532, 7281915, 8738298, 9709220, 14563830, 17476596, 21845745, 29127660, 43691490, 87382980]

約数ペア:
[(1, 87382980), (2, 43691490), (3, 29127660), (4, 21845745), (5, 17476596), (6, 14563830), (9, 9709220), (10, 8738298), (12, 7281915), (15, 5825532), (18, 4854610), (20, 4369149), (23, 3799260), (30, 2912766), (36, 2427305), (45, 1941844), (46, 1899630), (60, 1456383), (69, 1266420), (90, 970922), (92, 949815), (115, 759852), (138, 633210), (180, 485461), (207, 422140), (230, 379926), (276, 316605), (345, 253284), (414, 211070), (460, 189963), (690, 126642), (828, 105535), (1035, 84428), (1380, 63321), (2070, 42214), (4140, 21107)]

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