About the Number

12991392128

12991392127 ← → 12991392129

2進数表記:1100000110010110001110100110000000

漢数字表記:百二十九億九千百三十九万二千百二十八

素因数分解:

2 7 × 11 1 × 13 1 × 23 1 × 30859 1

素因数の和:30920
約数の個数: 128
約数和(自身を含む): 31729017600
約数和(自身を除く): 18737625472

約数列:
[1, 2, 4, 8, 11, 13, 16, 22, 23, 26, 32, 44, 46, 52, 64, 88, 92, 104, 128, 143, 176, 184, 208, 253, 286, 299, 352, 368, 416, 506, 572, 598, 704, 736, 832, 1012, 1144, 1196, 1408, 1472, 1664, 2024, 2288, 2392, 2944, 3289, 4048, 4576, 4784, 6578, 8096, 9152, 9568, 13156, 16192, 18304, 19136, 26312, 30859, 32384, 38272, 52624, 61718, 105248, 123436, 210496, 246872, 339449, 401167, 420992, 493744, 678898, 709757, 802334, 987488, 1357796, 1419514, 1604668, 1974976, 2715592, 2839028, 3209336, 3949952, 4412837, 5431184, 5678056, 6418672, 7807327, 8825674, 9226841, 10862368, 11356112, 12837344, 15614654, 17651348, 18453682, 21724736, 22712224, 25674688, 31229308, 35302696, 36907364, 43449472, 45424448, 51349376, 62458616, 70605392, 73814728, 90848896, 101495251, 124917232, 141210784, 147629456, 202990502, 249834464, 282421568, 295258912, 405981004, 499668928, 564843136, 590517824, 811962008, 999337856, 1181035648, 1623924016, 3247848032, 6495696064, 12991392128]

約数ペア:
[(1, 12991392128), (2, 6495696064), (4, 3247848032), (8, 1623924016), (11, 1181035648), (13, 999337856), (16, 811962008), (22, 590517824), (23, 564843136), (26, 499668928), (32, 405981004), (44, 295258912), (46, 282421568), (52, 249834464), (64, 202990502), (88, 147629456), (92, 141210784), (104, 124917232), (128, 101495251), (143, 90848896), (176, 73814728), (184, 70605392), (208, 62458616), (253, 51349376), (286, 45424448), (299, 43449472), (352, 36907364), (368, 35302696), (416, 31229308), (506, 25674688), (572, 22712224), (598, 21724736), (704, 18453682), (736, 17651348), (832, 15614654), (1012, 12837344), (1144, 11356112), (1196, 10862368), (1408, 9226841), (1472, 8825674), (1664, 7807327), (2024, 6418672), (2288, 5678056), (2392, 5431184), (2944, 4412837), (3289, 3949952), (4048, 3209336), (4576, 2839028), (4784, 2715592), (6578, 1974976), (8096, 1604668), (9152, 1419514), (9568, 1357796), (13156, 987488), (16192, 802334), (18304, 709757), (19136, 678898), (26312, 493744), (30859, 420992), (32384, 401167), (38272, 339449), (52624, 246872), (61718, 210496), (105248, 123436)]

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