About the Number

12991740

12991739 ← → 12991741

2進数表記:110001100011110011111100

漢数字表記:千二百九十九万千七百四十

素因数分解:

2 2 × 3 1 × 5 1 × 17 1 × 47 1 × 271 1

素因数の和:347
約数の個数: 96
約数和(自身を含む): 39481344
約数和(自身を除く): 26489604

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 47, 51, 60, 68, 85, 94, 102, 141, 170, 188, 204, 235, 255, 271, 282, 340, 470, 510, 542, 564, 705, 799, 813, 940, 1020, 1084, 1355, 1410, 1598, 1626, 2397, 2710, 2820, 3196, 3252, 3995, 4065, 4607, 4794, 5420, 7990, 8130, 9214, 9588, 11985, 12737, 13821, 15980, 16260, 18428, 23035, 23970, 25474, 27642, 38211, 46070, 47940, 50948, 55284, 63685, 69105, 76422, 92140, 127370, 138210, 152844, 191055, 216529, 254740, 276420, 382110, 433058, 649587, 764220, 866116, 1082645, 1299174, 2165290, 2598348, 3247935, 4330580, 6495870, 12991740]

約数ペア:
[(1, 12991740), (2, 6495870), (3, 4330580), (4, 3247935), (5, 2598348), (6, 2165290), (10, 1299174), (12, 1082645), (15, 866116), (17, 764220), (20, 649587), (30, 433058), (34, 382110), (47, 276420), (51, 254740), (60, 216529), (68, 191055), (85, 152844), (94, 138210), (102, 127370), (141, 92140), (170, 76422), (188, 69105), (204, 63685), (235, 55284), (255, 50948), (271, 47940), (282, 46070), (340, 38211), (470, 27642), (510, 25474), (542, 23970), (564, 23035), (705, 18428), (799, 16260), (813, 15980), (940, 13821), (1020, 12737), (1084, 11985), (1355, 9588), (1410, 9214), (1598, 8130), (1626, 7990), (2397, 5420), (2710, 4794), (2820, 4607), (3196, 4065), (3252, 3995)]

このpageの処理時間: 0.005394935607910156 seconds