About the Number

128689488

128689487 ← → 128689489

2進数表記:111101010111010010101010000

漢数字表記:一億二千八百六十八万九千四百八十八

素因数分解:

2 4 × 3 2 × 41 1 × 71 1 × 307 1

素因数の和:433
約数の個数: 120
約数和(自身を含む): 375350976
約数和(自身を除く): 246661488

約数列:
[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 41, 48, 71, 72, 82, 123, 142, 144, 164, 213, 246, 284, 307, 328, 369, 426, 492, 568, 614, 639, 656, 738, 852, 921, 984, 1136, 1228, 1278, 1476, 1704, 1842, 1968, 2456, 2556, 2763, 2911, 2952, 3408, 3684, 4912, 5112, 5526, 5822, 5904, 7368, 8733, 10224, 11052, 11644, 12587, 14736, 17466, 21797, 22104, 23288, 25174, 26199, 34932, 37761, 43594, 44208, 46576, 50348, 52398, 65391, 69864, 75522, 87188, 100696, 104796, 113283, 130782, 139728, 151044, 174376, 196173, 201392, 209592, 226566, 261564, 302088, 348752, 392346, 419184, 453132, 523128, 604176, 784692, 893677, 906264, 1046256, 1569384, 1787354, 1812528, 2681031, 3138768, 3574708, 5362062, 7149416, 8043093, 10724124, 14298832, 16086186, 21448248, 32172372, 42896496, 64344744, 128689488]

約数ペア:
[(1, 128689488), (2, 64344744), (3, 42896496), (4, 32172372), (6, 21448248), (8, 16086186), (9, 14298832), (12, 10724124), (16, 8043093), (18, 7149416), (24, 5362062), (36, 3574708), (41, 3138768), (48, 2681031), (71, 1812528), (72, 1787354), (82, 1569384), (123, 1046256), (142, 906264), (144, 893677), (164, 784692), (213, 604176), (246, 523128), (284, 453132), (307, 419184), (328, 392346), (369, 348752), (426, 302088), (492, 261564), (568, 226566), (614, 209592), (639, 201392), (656, 196173), (738, 174376), (852, 151044), (921, 139728), (984, 130782), (1136, 113283), (1228, 104796), (1278, 100696), (1476, 87188), (1704, 75522), (1842, 69864), (1968, 65391), (2456, 52398), (2556, 50348), (2763, 46576), (2911, 44208), (2952, 43594), (3408, 37761), (3684, 34932), (4912, 26199), (5112, 25174), (5526, 23288), (5822, 22104), (5904, 21797), (7368, 17466), (8733, 14736), (10224, 12587), (11052, 11644)]

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