About the Number

1681687008

1681687007 ← → 1681687009

2進数表記:1100100001111001000000111100000

漢数字表記:十六億八千百六十八万七千八

素因数分解:

2 5 × 3 4 × 31 1 × 20929 1

素因数の和:20982
約数の個数: 120
約数和(自身を含む): 5105580480
約数和(自身を除く): 3423893472

約数列:
[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 31, 32, 36, 48, 54, 62, 72, 81, 93, 96, 108, 124, 144, 162, 186, 216, 248, 279, 288, 324, 372, 432, 496, 558, 648, 744, 837, 864, 992, 1116, 1296, 1488, 1674, 2232, 2511, 2592, 2976, 3348, 4464, 5022, 6696, 8928, 10044, 13392, 20088, 20929, 26784, 40176, 41858, 62787, 80352, 83716, 125574, 167432, 188361, 251148, 334864, 376722, 502296, 565083, 648799, 669728, 753444, 1004592, 1130166, 1297598, 1506888, 1695249, 1946397, 2009184, 2260332, 2595196, 3013776, 3390498, 3892794, 4520664, 5190392, 5839191, 6027552, 6780996, 7785588, 9041328, 10380784, 11678382, 13561992, 15571176, 17517573, 18082656, 20761568, 23356764, 27123984, 31142352, 35035146, 46713528, 52552719, 54247968, 62284704, 70070292, 93427056, 105105438, 140140584, 186854112, 210210876, 280281168, 420421752, 560562336, 840843504, 1681687008]

約数ペア:
[(1, 1681687008), (2, 840843504), (3, 560562336), (4, 420421752), (6, 280281168), (8, 210210876), (9, 186854112), (12, 140140584), (16, 105105438), (18, 93427056), (24, 70070292), (27, 62284704), (31, 54247968), (32, 52552719), (36, 46713528), (48, 35035146), (54, 31142352), (62, 27123984), (72, 23356764), (81, 20761568), (93, 18082656), (96, 17517573), (108, 15571176), (124, 13561992), (144, 11678382), (162, 10380784), (186, 9041328), (216, 7785588), (248, 6780996), (279, 6027552), (288, 5839191), (324, 5190392), (372, 4520664), (432, 3892794), (496, 3390498), (558, 3013776), (648, 2595196), (744, 2260332), (837, 2009184), (864, 1946397), (992, 1695249), (1116, 1506888), (1296, 1297598), (1488, 1130166), (1674, 1004592), (2232, 753444), (2511, 669728), (2592, 648799), (2976, 565083), (3348, 502296), (4464, 376722), (5022, 334864), (6696, 251148), (8928, 188361), (10044, 167432), (13392, 125574), (20088, 83716), (20929, 80352), (26784, 62787), (40176, 41858)]

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