About the Number

247904280

247904279 ← → 247904281

2進数表記:1110110001101011100000011000

漢数字表記:二億四千七百九十万四千二百八十

素因数分解:

2 3 × 3 3 × 5 1 × 13 1 × 17657 1

素因数の和:17690
約数の個数: 128
約数和(自身を含む): 889963200
約数和(自身を除く): 642058920

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 180, 195, 216, 234, 260, 270, 312, 351, 360, 390, 468, 520, 540, 585, 702, 780, 936, 1080, 1170, 1404, 1560, 1755, 2340, 2808, 3510, 4680, 7020, 14040, 17657, 35314, 52971, 70628, 88285, 105942, 141256, 158913, 176570, 211884, 229541, 264855, 317826, 353140, 423768, 459082, 476739, 529710, 635652, 688623, 706280, 794565, 918164, 953478, 1059420, 1147705, 1271304, 1377246, 1589130, 1836328, 1906956, 2065869, 2118840, 2295410, 2383695, 2754492, 3178260, 3443115, 3813912, 4131738, 4590820, 4767390, 5508984, 6197607, 6356520, 6886230, 8263476, 9181640, 9534780, 10329345, 12395214, 13772460, 16526952, 19069560, 20658690, 24790428, 27544920, 30988035, 41317380, 49580856, 61976070, 82634760, 123952140, 247904280]

約数ペア:
[(1, 247904280), (2, 123952140), (3, 82634760), (4, 61976070), (5, 49580856), (6, 41317380), (8, 30988035), (9, 27544920), (10, 24790428), (12, 20658690), (13, 19069560), (15, 16526952), (18, 13772460), (20, 12395214), (24, 10329345), (26, 9534780), (27, 9181640), (30, 8263476), (36, 6886230), (39, 6356520), (40, 6197607), (45, 5508984), (52, 4767390), (54, 4590820), (60, 4131738), (65, 3813912), (72, 3443115), (78, 3178260), (90, 2754492), (104, 2383695), (108, 2295410), (117, 2118840), (120, 2065869), (130, 1906956), (135, 1836328), (156, 1589130), (180, 1377246), (195, 1271304), (216, 1147705), (234, 1059420), (260, 953478), (270, 918164), (312, 794565), (351, 706280), (360, 688623), (390, 635652), (468, 529710), (520, 476739), (540, 459082), (585, 423768), (702, 353140), (780, 317826), (936, 264855), (1080, 229541), (1170, 211884), (1404, 176570), (1560, 158913), (1755, 141256), (2340, 105942), (2808, 88285), (3510, 70628), (4680, 52971), (7020, 35314), (14040, 17657)]

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