About the Number

138172720

138172719 ← → 138172721

2進数表記:1000001111000101100100110000

漢数字表記:一億三千八百十七万二千七百二十

素因数分解:

2 4 × 5 1 × 7 1 × 137 1 × 1801 1

素因数の和:1958
約数の個数: 80
約数和(自身を含む): 370029888
約数和(自身を除く): 231857168

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 137, 140, 274, 280, 548, 560, 685, 959, 1096, 1370, 1801, 1918, 2192, 2740, 3602, 3836, 4795, 5480, 7204, 7672, 9005, 9590, 10960, 12607, 14408, 15344, 18010, 19180, 25214, 28816, 36020, 38360, 50428, 63035, 72040, 76720, 100856, 126070, 144080, 201712, 246737, 252140, 493474, 504280, 986948, 1008560, 1233685, 1727159, 1973896, 2467370, 3454318, 3947792, 4934740, 6908636, 8635795, 9869480, 13817272, 17271590, 19738960, 27634544, 34543180, 69086360, 138172720]

約数ペア:
[(1, 138172720), (2, 69086360), (4, 34543180), (5, 27634544), (7, 19738960), (8, 17271590), (10, 13817272), (14, 9869480), (16, 8635795), (20, 6908636), (28, 4934740), (35, 3947792), (40, 3454318), (56, 2467370), (70, 1973896), (80, 1727159), (112, 1233685), (137, 1008560), (140, 986948), (274, 504280), (280, 493474), (548, 252140), (560, 246737), (685, 201712), (959, 144080), (1096, 126070), (1370, 100856), (1801, 76720), (1918, 72040), (2192, 63035), (2740, 50428), (3602, 38360), (3836, 36020), (4795, 28816), (5480, 25214), (7204, 19180), (7672, 18010), (9005, 15344), (9590, 14408), (10960, 12607)]

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