About the Number

142721904

142721903 ← → 142721905

2進数表記:1000100000011100001101110000

漢数字表記:一億四千二百七十二万千九百四

素因数分解:

2 4 × 3 1 × 13 1 × 331 1 × 691 1

素因数の和:1046
約数の個数: 80
約数和(自身を含む): 398835584
約数和(自身を除く): 256113680

約数列:
[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 331, 624, 662, 691, 993, 1324, 1382, 1986, 2073, 2648, 2764, 3972, 4146, 4303, 5296, 5528, 7944, 8292, 8606, 8983, 11056, 12909, 15888, 16584, 17212, 17966, 25818, 26949, 33168, 34424, 35932, 51636, 53898, 68848, 71864, 103272, 107796, 143728, 206544, 215592, 228721, 431184, 457442, 686163, 914884, 1372326, 1829768, 2744652, 2973373, 3659536, 5489304, 5946746, 8920119, 10978608, 11893492, 17840238, 23786984, 35680476, 47573968, 71360952, 142721904]

約数ペア:
[(1, 142721904), (2, 71360952), (3, 47573968), (4, 35680476), (6, 23786984), (8, 17840238), (12, 11893492), (13, 10978608), (16, 8920119), (24, 5946746), (26, 5489304), (39, 3659536), (48, 2973373), (52, 2744652), (78, 1829768), (104, 1372326), (156, 914884), (208, 686163), (312, 457442), (331, 431184), (624, 228721), (662, 215592), (691, 206544), (993, 143728), (1324, 107796), (1382, 103272), (1986, 71864), (2073, 68848), (2648, 53898), (2764, 51636), (3972, 35932), (4146, 34424), (4303, 33168), (5296, 26949), (5528, 25818), (7944, 17966), (8292, 17212), (8606, 16584), (8983, 15888), (11056, 12909)]

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