About the Number

72987460

72987459 ← → 72987461

2進数表記:100010110011011001101000100

漢数字表記:七千二百九十八万七千四百六十

素因数分解:

2 2 × 5 1 × 7 2 × 13 1 × 17 1 × 337 1

素因数の和:390
約数の個数: 144
約数和(自身を含む): 203911344
約数和(自身を除く): 130923884

約数列:
[1, 2, 4, 5, 7, 10, 13, 14, 17, 20, 26, 28, 34, 35, 49, 52, 65, 68, 70, 85, 91, 98, 119, 130, 140, 170, 182, 196, 221, 238, 245, 260, 337, 340, 364, 442, 455, 476, 490, 595, 637, 674, 833, 884, 910, 980, 1105, 1190, 1274, 1348, 1547, 1666, 1685, 1820, 2210, 2359, 2380, 2548, 3094, 3185, 3332, 3370, 4165, 4381, 4420, 4718, 5729, 6188, 6370, 6740, 7735, 8330, 8762, 9436, 10829, 11458, 11795, 12740, 15470, 16513, 16660, 17524, 21658, 21905, 22916, 23590, 28645, 30667, 30940, 33026, 40103, 43316, 43810, 47180, 54145, 57290, 61334, 66052, 74477, 80206, 82565, 87620, 108290, 114580, 122668, 148954, 153335, 160412, 165130, 200515, 214669, 216580, 280721, 297908, 306670, 330260, 372385, 401030, 429338, 521339, 561442, 613340, 744770, 802060, 858676, 1042678, 1073345, 1122884, 1403605, 1489540, 2085356, 2146690, 2606695, 2807210, 3649373, 4293380, 5213390, 5614420, 7298746, 10426780, 14597492, 18246865, 36493730, 72987460]

約数ペア:
[(1, 72987460), (2, 36493730), (4, 18246865), (5, 14597492), (7, 10426780), (10, 7298746), (13, 5614420), (14, 5213390), (17, 4293380), (20, 3649373), (26, 2807210), (28, 2606695), (34, 2146690), (35, 2085356), (49, 1489540), (52, 1403605), (65, 1122884), (68, 1073345), (70, 1042678), (85, 858676), (91, 802060), (98, 744770), (119, 613340), (130, 561442), (140, 521339), (170, 429338), (182, 401030), (196, 372385), (221, 330260), (238, 306670), (245, 297908), (260, 280721), (337, 216580), (340, 214669), (364, 200515), (442, 165130), (455, 160412), (476, 153335), (490, 148954), (595, 122668), (637, 114580), (674, 108290), (833, 87620), (884, 82565), (910, 80206), (980, 74477), (1105, 66052), (1190, 61334), (1274, 57290), (1348, 54145), (1547, 47180), (1666, 43810), (1685, 43316), (1820, 40103), (2210, 33026), (2359, 30940), (2380, 30667), (2548, 28645), (3094, 23590), (3185, 22916), (3332, 21905), (3370, 21658), (4165, 17524), (4381, 16660), (4420, 16513), (4718, 15470), (5729, 12740), (6188, 11795), (6370, 11458), (6740, 10829), (7735, 9436), (8330, 8762)]

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