About the Number

20131990128

20131990127 ← → 20131990129

2進数表記:10010101111111101011100101001110000

漢数字表記:二百一億三千百九十九万百二十八

素因数分解:

2 4 × 3 5 × 269 1 × 19249 1

素因数の和:19541
約数の個数: 120
約数和(自身を含む): 58648590000
約数和(自身を除く): 38516599872

約数列:
[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 144, 162, 216, 243, 269, 324, 432, 486, 538, 648, 807, 972, 1076, 1296, 1614, 1944, 2152, 2421, 3228, 3888, 4304, 4842, 6456, 7263, 9684, 12912, 14526, 19249, 19368, 21789, 29052, 38498, 38736, 43578, 57747, 58104, 65367, 76996, 87156, 115494, 116208, 130734, 153992, 173241, 174312, 230988, 261468, 307984, 346482, 348624, 461976, 519723, 522936, 692964, 923952, 1039446, 1045872, 1385928, 1559169, 2078892, 2771856, 3118338, 4157784, 4677507, 5177981, 6236676, 8315568, 9355014, 10355962, 12473352, 15533943, 18710028, 20711924, 24946704, 31067886, 37420056, 41423848, 46601829, 62135772, 74840112, 82847696, 93203658, 124271544, 139805487, 186407316, 248543088, 279610974, 372814632, 419416461, 559221948, 745629264, 838832922, 1118443896, 1258249383, 1677665844, 2236887792, 2516498766, 3355331688, 5032997532, 6710663376, 10065995064, 20131990128]

約数ペア:
[(1, 20131990128), (2, 10065995064), (3, 6710663376), (4, 5032997532), (6, 3355331688), (8, 2516498766), (9, 2236887792), (12, 1677665844), (16, 1258249383), (18, 1118443896), (24, 838832922), (27, 745629264), (36, 559221948), (48, 419416461), (54, 372814632), (72, 279610974), (81, 248543088), (108, 186407316), (144, 139805487), (162, 124271544), (216, 93203658), (243, 82847696), (269, 74840112), (324, 62135772), (432, 46601829), (486, 41423848), (538, 37420056), (648, 31067886), (807, 24946704), (972, 20711924), (1076, 18710028), (1296, 15533943), (1614, 12473352), (1944, 10355962), (2152, 9355014), (2421, 8315568), (3228, 6236676), (3888, 5177981), (4304, 4677507), (4842, 4157784), (6456, 3118338), (7263, 2771856), (9684, 2078892), (12912, 1559169), (14526, 1385928), (19249, 1045872), (19368, 1039446), (21789, 923952), (29052, 692964), (38498, 522936), (38736, 519723), (43578, 461976), (57747, 348624), (58104, 346482), (65367, 307984), (76996, 261468), (87156, 230988), (115494, 174312), (116208, 173241), (130734, 153992)]

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