About the Number

1988820

1988819 ← → 1988821

2進数表記:111100101100011010100

漢数字表記:百九十八万八千八百二十

素因数分解:

2 2 × 3 3 × 5 1 × 29 1 × 127 1

素因数の和:174
約数の個数: 96
約数和(自身を含む): 6451200
約数和(自身を除く): 4462380

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 45, 54, 58, 60, 87, 90, 108, 116, 127, 135, 145, 174, 180, 254, 261, 270, 290, 348, 381, 435, 508, 522, 540, 580, 635, 762, 783, 870, 1044, 1143, 1270, 1305, 1524, 1566, 1740, 1905, 2286, 2540, 2610, 3132, 3429, 3683, 3810, 3915, 4572, 5220, 5715, 6858, 7366, 7620, 7830, 11049, 11430, 13716, 14732, 15660, 17145, 18415, 22098, 22860, 33147, 34290, 36830, 44196, 55245, 66294, 68580, 73660, 99441, 110490, 132588, 165735, 198882, 220980, 331470, 397764, 497205, 662940, 994410, 1988820]

約数ペア:
[(1, 1988820), (2, 994410), (3, 662940), (4, 497205), (5, 397764), (6, 331470), (9, 220980), (10, 198882), (12, 165735), (15, 132588), (18, 110490), (20, 99441), (27, 73660), (29, 68580), (30, 66294), (36, 55245), (45, 44196), (54, 36830), (58, 34290), (60, 33147), (87, 22860), (90, 22098), (108, 18415), (116, 17145), (127, 15660), (135, 14732), (145, 13716), (174, 11430), (180, 11049), (254, 7830), (261, 7620), (270, 7366), (290, 6858), (348, 5715), (381, 5220), (435, 4572), (508, 3915), (522, 3810), (540, 3683), (580, 3429), (635, 3132), (762, 2610), (783, 2540), (870, 2286), (1044, 1905), (1143, 1740), (1270, 1566), (1305, 1524)]

このpageの処理時間: 0.004290580749511719 seconds