About the Number

1221497284

1221497283 ← → 1221497285

2進数表記:1001000110011101001000111000100

漢数字表記:十二億二千百四十九万七千二百八十四

素因数分解:

2 2 × 7 2 × 29 1 × 311 1 × 691 1

素因数の和:1049
約数の個数: 72
約数和(自身を含む): 2584370880
約数和(自身を除く): 1362873596

約数列:
[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 196, 203, 311, 406, 622, 691, 812, 1244, 1382, 1421, 2177, 2764, 2842, 4354, 4837, 5684, 8708, 9019, 9674, 15239, 18038, 19348, 20039, 30478, 33859, 36076, 40078, 60956, 63133, 67718, 80156, 126266, 135436, 140273, 214901, 252532, 280546, 429802, 441931, 561092, 859604, 883862, 981911, 1504307, 1767724, 1963822, 3008614, 3927644, 6017228, 6232129, 10530149, 12464258, 21060298, 24928516, 42120596, 43624903, 87249806, 174499612, 305374321, 610748642, 1221497284]

約数ペア:
[(1, 1221497284), (2, 610748642), (4, 305374321), (7, 174499612), (14, 87249806), (28, 43624903), (29, 42120596), (49, 24928516), (58, 21060298), (98, 12464258), (116, 10530149), (196, 6232129), (203, 6017228), (311, 3927644), (406, 3008614), (622, 1963822), (691, 1767724), (812, 1504307), (1244, 981911), (1382, 883862), (1421, 859604), (2177, 561092), (2764, 441931), (2842, 429802), (4354, 280546), (4837, 252532), (5684, 214901), (8708, 140273), (9019, 135436), (9674, 126266), (15239, 80156), (18038, 67718), (19348, 63133), (20039, 60956), (30478, 40078), (33859, 36076)]

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