About the Number

380671280

380671279 ← → 380671281

2進数表記:10110101100001001010100110000

漢数字表記:三億八千六十七万千二百八十

素因数分解:

2 4 × 5 1 × 11 1 × 229 1 × 1889 1

素因数の和:2142
約数の個数: 80
約数和(自身を含む): 970250400
約数和(自身を除く): 589579120

約数列:
[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 229, 440, 458, 880, 916, 1145, 1832, 1889, 2290, 2519, 3664, 3778, 4580, 5038, 7556, 9160, 9445, 10076, 12595, 15112, 18320, 18890, 20152, 20779, 25190, 30224, 37780, 40304, 41558, 50380, 75560, 83116, 100760, 103895, 151120, 166232, 201520, 207790, 332464, 415580, 432581, 831160, 865162, 1662320, 1730324, 2162905, 3460648, 4325810, 4758391, 6921296, 8651620, 9516782, 17303240, 19033564, 23791955, 34606480, 38067128, 47583910, 76134256, 95167820, 190335640, 380671280]

約数ペア:
[(1, 380671280), (2, 190335640), (4, 95167820), (5, 76134256), (8, 47583910), (10, 38067128), (11, 34606480), (16, 23791955), (20, 19033564), (22, 17303240), (40, 9516782), (44, 8651620), (55, 6921296), (80, 4758391), (88, 4325810), (110, 3460648), (176, 2162905), (220, 1730324), (229, 1662320), (440, 865162), (458, 831160), (880, 432581), (916, 415580), (1145, 332464), (1832, 207790), (1889, 201520), (2290, 166232), (2519, 151120), (3664, 103895), (3778, 100760), (4580, 83116), (5038, 75560), (7556, 50380), (9160, 41558), (9445, 40304), (10076, 37780), (12595, 30224), (15112, 25190), (18320, 20779), (18890, 20152)]

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