About the Number

129120780

129120779 ← → 129120781

2進数表記:111101100100011101000001100

漢数字表記:一億二千九百十二万七百八十

素因数分解:

2 2 × 3 1 × 5 1 × 17 1 × 277 1 × 457 1

素因数の和:763
約数の個数: 96
約数和(自身を含む): 385027776
約数和(自身を除く): 255906996

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 277, 340, 457, 510, 554, 831, 914, 1020, 1108, 1371, 1385, 1662, 1828, 2285, 2742, 2770, 3324, 4155, 4570, 4709, 5484, 5540, 6855, 7769, 8310, 9140, 9418, 13710, 14127, 15538, 16620, 18836, 23307, 23545, 27420, 28254, 31076, 38845, 46614, 47090, 56508, 70635, 77690, 93228, 94180, 116535, 126589, 141270, 155380, 233070, 253178, 282540, 379767, 466140, 506356, 632945, 759534, 1265890, 1519068, 1898835, 2152013, 2531780, 3797670, 4304026, 6456039, 7595340, 8608052, 10760065, 12912078, 21520130, 25824156, 32280195, 43040260, 64560390, 129120780]

約数ペア:
[(1, 129120780), (2, 64560390), (3, 43040260), (4, 32280195), (5, 25824156), (6, 21520130), (10, 12912078), (12, 10760065), (15, 8608052), (17, 7595340), (20, 6456039), (30, 4304026), (34, 3797670), (51, 2531780), (60, 2152013), (68, 1898835), (85, 1519068), (102, 1265890), (170, 759534), (204, 632945), (255, 506356), (277, 466140), (340, 379767), (457, 282540), (510, 253178), (554, 233070), (831, 155380), (914, 141270), (1020, 126589), (1108, 116535), (1371, 94180), (1385, 93228), (1662, 77690), (1828, 70635), (2285, 56508), (2742, 47090), (2770, 46614), (3324, 38845), (4155, 31076), (4570, 28254), (4709, 27420), (5484, 23545), (5540, 23307), (6855, 18836), (7769, 16620), (8310, 15538), (9140, 14127), (9418, 13710)]

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