About the Number
21000720
2進数表記:1010000000111001000010000
漢数字表記:二千百万七百二十
素因数分解:
素因数の和:209
約数の個数: 160
約数和(自身を含む): 71995392
約数和(自身を除く): 50994672
約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 53, 60, 65, 78, 80, 104, 106, 120, 127, 130, 156, 159, 195, 208, 212, 240, 254, 260, 265, 312, 318, 381, 390, 424, 508, 520, 530, 624, 635, 636, 689, 762, 780, 795, 848, 1016, 1040, 1060, 1270, 1272, 1378, 1524, 1560, 1590, 1651, 1905, 2032, 2067, 2120, 2540, 2544, 2756, 3048, 3120, 3180, 3302, 3445, 3810, 4134, 4240, 4953, 5080, 5512, 6096, 6360, 6604, 6731, 6890, 7620, 8255, 8268, 9906, 10160, 10335, 11024, 12720, 13208, 13462, 13780, 15240, 16510, 16536, 19812, 20193, 20670, 24765, 26416, 26924, 27560, 30480, 33020, 33072, 33655, 39624, 40386, 41340, 49530, 53848, 55120, 66040, 67310, 79248, 80772, 82680, 87503, 99060, 100965, 107696, 132080, 134620, 161544, 165360, 175006, 198120, 201930, 262509, 269240, 323088, 350012, 396240, 403860, 437515, 525018, 538480, 700024, 807720, 875030, 1050036, 1312545, 1400048, 1615440, 1750060, 2100072, 2625090, 3500120, 4200144, 5250180, 7000240, 10500360, 21000720]
約数ペア:
[(1, 21000720), (2, 10500360), (3, 7000240), (4, 5250180), (5, 4200144), (6, 3500120), (8, 2625090), (10, 2100072), (12, 1750060), (13, 1615440), (15, 1400048), (16, 1312545), (20, 1050036), (24, 875030), (26, 807720), (30, 700024), (39, 538480), (40, 525018), (48, 437515), (52, 403860), (53, 396240), (60, 350012), (65, 323088), (78, 269240), (80, 262509), (104, 201930), (106, 198120), (120, 175006), (127, 165360), (130, 161544), (156, 134620), (159, 132080), (195, 107696), (208, 100965), (212, 99060), (240, 87503), (254, 82680), (260, 80772), (265, 79248), (312, 67310), (318, 66040), (381, 55120), (390, 53848), (424, 49530), (508, 41340), (520, 40386), (530, 39624), (624, 33655), (635, 33072), (636, 33020), (689, 30480), (762, 27560), (780, 26924), (795, 26416), (848, 24765), (1016, 20670), (1040, 20193), (1060, 19812), (1270, 16536), (1272, 16510), (1378, 15240), (1524, 13780), (1560, 13462), (1590, 13208), (1651, 12720), (1905, 11024), (2032, 10335), (2067, 10160), (2120, 9906), (2540, 8268), (2544, 8255), (2756, 7620), (3048, 6890), (3120, 6731), (3180, 6604), (3302, 6360), (3445, 6096), (3810, 5512), (4134, 5080), (4240, 4953)]このpageの処理時間: 0.11780667304992676 seconds