About the Number

1405394991

1405394990 ← → 1405394992

2進数表記:1010011110001001010000000101111

漢数字表記:十四億五百三十九万四千九百九十一

素因数分解:

3 2 × 7 1 × 11 1 × 13 1 × 257 1 × 607 1

素因数の和:901
約数の個数: 96
約数和(自身を含む): 2740727808
約数和(自身を除く): 1335332817

約数列:
[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 143, 231, 257, 273, 429, 607, 693, 771, 819, 1001, 1287, 1799, 1821, 2313, 2827, 3003, 3341, 4249, 5397, 5463, 6677, 7891, 8481, 9009, 10023, 12747, 16191, 19789, 20031, 23387, 23673, 25443, 30069, 36751, 38241, 46739, 55237, 59367, 60093, 70161, 71019, 86801, 110253, 140217, 155999, 165711, 178101, 210483, 257257, 260403, 330759, 420651, 467997, 497133, 607607, 771771, 781209, 1091993, 1403991, 1715989, 1822821, 2027987, 2315313, 3275979, 5147967, 5468463, 6083961, 9827937, 12011923, 14195909, 15443901, 18251883, 22307857, 36035769, 42587727, 66923571, 108107307, 127763181, 156154999, 200770713, 468464997, 1405394991]

約数ペア:
[(1, 1405394991), (3, 468464997), (7, 200770713), (9, 156154999), (11, 127763181), (13, 108107307), (21, 66923571), (33, 42587727), (39, 36035769), (63, 22307857), (77, 18251883), (91, 15443901), (99, 14195909), (117, 12011923), (143, 9827937), (231, 6083961), (257, 5468463), (273, 5147967), (429, 3275979), (607, 2315313), (693, 2027987), (771, 1822821), (819, 1715989), (1001, 1403991), (1287, 1091993), (1799, 781209), (1821, 771771), (2313, 607607), (2827, 497133), (3003, 467997), (3341, 420651), (4249, 330759), (5397, 260403), (5463, 257257), (6677, 210483), (7891, 178101), (8481, 165711), (9009, 155999), (10023, 140217), (12747, 110253), (16191, 86801), (19789, 71019), (20031, 70161), (23387, 60093), (23673, 59367), (25443, 55237), (30069, 46739), (36751, 38241)]

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