About the Number

228721320

228721319 ← → 228721321

2進数表記:1101101000100000001010101000

漢数字表記:二億二千八百七十二万千三百二十

素因数分解:

2 3 × 3 5 × 5 1 × 23531 1

素因数の和:23557
約数の個数: 96
約数和(自身を含む): 770908320
約数和(自身を除く): 542187000

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 2430, 3240, 4860, 9720, 23531, 47062, 70593, 94124, 117655, 141186, 188248, 211779, 235310, 282372, 352965, 423558, 470620, 564744, 635337, 705930, 847116, 941240, 1058895, 1270674, 1411860, 1694232, 1906011, 2117790, 2541348, 2823720, 3176685, 3812022, 4235580, 5082696, 5718033, 6353370, 7624044, 8471160, 9530055, 11436066, 12706740, 15248088, 19060110, 22872132, 25413480, 28590165, 38120220, 45744264, 57180330, 76240440, 114360660, 228721320]

約数ペア:
[(1, 228721320), (2, 114360660), (3, 76240440), (4, 57180330), (5, 45744264), (6, 38120220), (8, 28590165), (9, 25413480), (10, 22872132), (12, 19060110), (15, 15248088), (18, 12706740), (20, 11436066), (24, 9530055), (27, 8471160), (30, 7624044), (36, 6353370), (40, 5718033), (45, 5082696), (54, 4235580), (60, 3812022), (72, 3176685), (81, 2823720), (90, 2541348), (108, 2117790), (120, 1906011), (135, 1694232), (162, 1411860), (180, 1270674), (216, 1058895), (243, 941240), (270, 847116), (324, 705930), (360, 635337), (405, 564744), (486, 470620), (540, 423558), (648, 352965), (810, 282372), (972, 235310), (1080, 211779), (1215, 188248), (1620, 141186), (1944, 117655), (2430, 94124), (3240, 70593), (4860, 47062), (9720, 23531)]

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