About the Number

30879720

30879719 ← → 30879721

2進数表記:1110101110010111111101000

漢数字表記:三千八十七万九千七百二十

素因数分解:

2 3 × 3 2 × 5 1 × 31 1 × 2767 1

素因数の和:2815
約数の個数: 96
約数和(自身を含む): 103633920
約数和(自身を除く): 72754200

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 279, 310, 360, 372, 465, 558, 620, 744, 930, 1116, 1240, 1395, 1860, 2232, 2767, 2790, 3720, 5534, 5580, 8301, 11068, 11160, 13835, 16602, 22136, 24903, 27670, 33204, 41505, 49806, 55340, 66408, 83010, 85777, 99612, 110680, 124515, 166020, 171554, 199224, 249030, 257331, 332040, 343108, 428885, 498060, 514662, 686216, 771993, 857770, 996120, 1029324, 1286655, 1543986, 1715540, 2058648, 2573310, 3087972, 3431080, 3859965, 5146620, 6175944, 7719930, 10293240, 15439860, 30879720]

約数ペア:
[(1, 30879720), (2, 15439860), (3, 10293240), (4, 7719930), (5, 6175944), (6, 5146620), (8, 3859965), (9, 3431080), (10, 3087972), (12, 2573310), (15, 2058648), (18, 1715540), (20, 1543986), (24, 1286655), (30, 1029324), (31, 996120), (36, 857770), (40, 771993), (45, 686216), (60, 514662), (62, 498060), (72, 428885), (90, 343108), (93, 332040), (120, 257331), (124, 249030), (155, 199224), (180, 171554), (186, 166020), (248, 124515), (279, 110680), (310, 99612), (360, 85777), (372, 83010), (465, 66408), (558, 55340), (620, 49806), (744, 41505), (930, 33204), (1116, 27670), (1240, 24903), (1395, 22136), (1860, 16602), (2232, 13835), (2767, 11160), (2790, 11068), (3720, 8301), (5534, 5580)]

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