About the Number

2108402790

2108402789 ← → 2108402791

2進数表記:1111101101010111010110001100110

漢数字表記:二十一億八百四十万二千七百九十

素因数分解:

2 1 × 3 1 × 5 1 × 13 1 × 73 1 × 103 1 × 719 1

素因数の和:918
約数の個数: 128
約数和(自身を含む): 5585448960
約数和(自身を除く): 3477046170

約数列:
[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 73, 78, 103, 130, 146, 195, 206, 219, 309, 365, 390, 438, 515, 618, 719, 730, 949, 1030, 1095, 1339, 1438, 1545, 1898, 2157, 2190, 2678, 2847, 3090, 3595, 4017, 4314, 4745, 5694, 6695, 7190, 7519, 8034, 9347, 9490, 10785, 13390, 14235, 15038, 18694, 20085, 21570, 22557, 28041, 28470, 37595, 40170, 45114, 46735, 52487, 56082, 74057, 75190, 93470, 97747, 104974, 112785, 140205, 148114, 157461, 195494, 222171, 225570, 262435, 280410, 293241, 314922, 370285, 444342, 488735, 524870, 586482, 682331, 740570, 787305, 962741, 977470, 1110855, 1364662, 1466205, 1574610, 1925482, 2046993, 2221710, 2888223, 2932410, 3411655, 4093986, 4813705, 5406161, 5776446, 6823310, 9627410, 10234965, 10812322, 14441115, 16218483, 20469930, 27030805, 28882230, 32436966, 54061610, 70280093, 81092415, 140560186, 162184830, 210840279, 351400465, 421680558, 702800930, 1054201395, 2108402790]

約数ペア:
[(1, 2108402790), (2, 1054201395), (3, 702800930), (5, 421680558), (6, 351400465), (10, 210840279), (13, 162184830), (15, 140560186), (26, 81092415), (30, 70280093), (39, 54061610), (65, 32436966), (73, 28882230), (78, 27030805), (103, 20469930), (130, 16218483), (146, 14441115), (195, 10812322), (206, 10234965), (219, 9627410), (309, 6823310), (365, 5776446), (390, 5406161), (438, 4813705), (515, 4093986), (618, 3411655), (719, 2932410), (730, 2888223), (949, 2221710), (1030, 2046993), (1095, 1925482), (1339, 1574610), (1438, 1466205), (1545, 1364662), (1898, 1110855), (2157, 977470), (2190, 962741), (2678, 787305), (2847, 740570), (3090, 682331), (3595, 586482), (4017, 524870), (4314, 488735), (4745, 444342), (5694, 370285), (6695, 314922), (7190, 293241), (7519, 280410), (8034, 262435), (9347, 225570), (9490, 222171), (10785, 195494), (13390, 157461), (14235, 148114), (15038, 140205), (18694, 112785), (20085, 104974), (21570, 97747), (22557, 93470), (28041, 75190), (28470, 74057), (37595, 56082), (40170, 52487), (45114, 46735)]

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