About the Number

1988049759381

1988049759380 ← → 1988049759382

2進数表記:11100111011100000111111111110110010010101

漢数字表記:一兆九千八百八十億四千九百七十五万九千三百八十一

素因数分解:

3 2 × 7 2 × 17 1 × 6287 1 × 42179 1

素因数の和:48503
約数の個数: 72
約数和(自身を含む): 3537608929920
約数和(自身を除く): 1549559170539

約数列:
[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 357, 441, 833, 1071, 2499, 6287, 7497, 18861, 42179, 44009, 56583, 106879, 126537, 132027, 295253, 308063, 320637, 379611, 396081, 717043, 748153, 885759, 924189, 961911, 2066771, 2151129, 2244459, 2657277, 2772567, 5019301, 5237071, 6200313, 6453387, 6733377, 15057903, 15711213, 18600939, 35135107, 45173709, 47133639, 105405321, 265179373, 316215963, 795538119, 1856255611, 2386614357, 4508049341, 5568766833, 12993789277, 13524148023, 16706300499, 31556345387, 38981367831, 40572444069, 94669036161, 116944103493, 220894417709, 284007108483, 662683253127, 1988049759381]

約数ペア:
[(1, 1988049759381), (3, 662683253127), (7, 284007108483), (9, 220894417709), (17, 116944103493), (21, 94669036161), (49, 40572444069), (51, 38981367831), (63, 31556345387), (119, 16706300499), (147, 13524148023), (153, 12993789277), (357, 5568766833), (441, 4508049341), (833, 2386614357), (1071, 1856255611), (2499, 795538119), (6287, 316215963), (7497, 265179373), (18861, 105405321), (42179, 47133639), (44009, 45173709), (56583, 35135107), (106879, 18600939), (126537, 15711213), (132027, 15057903), (295253, 6733377), (308063, 6453387), (320637, 6200313), (379611, 5237071), (396081, 5019301), (717043, 2772567), (748153, 2657277), (885759, 2244459), (924189, 2151129), (961911, 2066771)]

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