About the Number

28790640

28790639 ← → 28790641

2進数表記:1101101110100111101110000

漢数字表記:二千八百七十九万六百四十

素因数分解:

2 4 × 3 5 × 5 1 × 1481 1

素因数の和:1509
約数の個数: 120
約数和(自身を含む): 100337328
約数和(自身を除く): 71546688

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 810, 972, 1080, 1215, 1296, 1481, 1620, 1944, 2160, 2430, 2962, 3240, 3888, 4443, 4860, 5924, 6480, 7405, 8886, 9720, 11848, 13329, 14810, 17772, 19440, 22215, 23696, 26658, 29620, 35544, 39987, 44430, 53316, 59240, 66645, 71088, 79974, 88860, 106632, 118480, 119961, 133290, 159948, 177720, 199935, 213264, 239922, 266580, 319896, 355440, 359883, 399870, 479844, 533160, 599805, 639792, 719766, 799740, 959688, 1066320, 1199610, 1439532, 1599480, 1799415, 1919376, 2399220, 2879064, 3198960, 3598830, 4798440, 5758128, 7197660, 9596880, 14395320, 28790640]

約数ペア:
[(1, 28790640), (2, 14395320), (3, 9596880), (4, 7197660), (5, 5758128), (6, 4798440), (8, 3598830), (9, 3198960), (10, 2879064), (12, 2399220), (15, 1919376), (16, 1799415), (18, 1599480), (20, 1439532), (24, 1199610), (27, 1066320), (30, 959688), (36, 799740), (40, 719766), (45, 639792), (48, 599805), (54, 533160), (60, 479844), (72, 399870), (80, 359883), (81, 355440), (90, 319896), (108, 266580), (120, 239922), (135, 213264), (144, 199935), (162, 177720), (180, 159948), (216, 133290), (240, 119961), (243, 118480), (270, 106632), (324, 88860), (360, 79974), (405, 71088), (432, 66645), (486, 59240), (540, 53316), (648, 44430), (720, 39987), (810, 35544), (972, 29620), (1080, 26658), (1215, 23696), (1296, 22215), (1481, 19440), (1620, 17772), (1944, 14810), (2160, 13329), (2430, 11848), (2962, 9720), (3240, 8886), (3888, 7405), (4443, 6480), (4860, 5924)]

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