About the Number

128288940

128288939 ← → 128288941

2進数表記:111101001011000100010101100

漢数字表記:一億二千八百二十八万八千九百四十

素因数分解:

2 2 × 3 1 × 5 1 × 13 1 × 23 1 × 7151 1

素因数の和:7199
約数の個数: 96
約数和(自身を含む): 403716096
約数和(自身を除く): 275427156

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 23, 26, 30, 39, 46, 52, 60, 65, 69, 78, 92, 115, 130, 138, 156, 195, 230, 260, 276, 299, 345, 390, 460, 598, 690, 780, 897, 1196, 1380, 1495, 1794, 2990, 3588, 4485, 5980, 7151, 8970, 14302, 17940, 21453, 28604, 35755, 42906, 71510, 85812, 92963, 107265, 143020, 164473, 185926, 214530, 278889, 328946, 371852, 429060, 464815, 493419, 557778, 657892, 822365, 929630, 986838, 1115556, 1394445, 1644730, 1859260, 1973676, 2138149, 2467095, 2788890, 3289460, 4276298, 4934190, 5577780, 6414447, 8552596, 9868380, 10690745, 12828894, 21381490, 25657788, 32072235, 42762980, 64144470, 128288940]

約数ペア:
[(1, 128288940), (2, 64144470), (3, 42762980), (4, 32072235), (5, 25657788), (6, 21381490), (10, 12828894), (12, 10690745), (13, 9868380), (15, 8552596), (20, 6414447), (23, 5577780), (26, 4934190), (30, 4276298), (39, 3289460), (46, 2788890), (52, 2467095), (60, 2138149), (65, 1973676), (69, 1859260), (78, 1644730), (92, 1394445), (115, 1115556), (130, 986838), (138, 929630), (156, 822365), (195, 657892), (230, 557778), (260, 493419), (276, 464815), (299, 429060), (345, 371852), (390, 328946), (460, 278889), (598, 214530), (690, 185926), (780, 164473), (897, 143020), (1196, 107265), (1380, 92963), (1495, 85812), (1794, 71510), (2990, 42906), (3588, 35755), (4485, 28604), (5980, 21453), (7151, 17940), (8970, 14302)]

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