About the Number

1281127080

1281127079 ← → 1281127081

2進数表記:1001100010111000111001010101000

漢数字表記:十二億八千百十二万七千八十

素因数分解:

2 3 × 3 1 × 5 1 × 31 1 × 241 1 × 1429 1

素因数の和:1715
約数の個数: 128
約数和(自身を含む): 3986611200
約数和(自身を除く): 2705484120

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 241, 248, 310, 372, 465, 482, 620, 723, 744, 930, 964, 1205, 1240, 1429, 1446, 1860, 1928, 2410, 2858, 2892, 3615, 3720, 4287, 4820, 5716, 5784, 7145, 7230, 7471, 8574, 9640, 11432, 14290, 14460, 14942, 17148, 21435, 22413, 28580, 28920, 29884, 34296, 37355, 42870, 44299, 44826, 57160, 59768, 74710, 85740, 88598, 89652, 112065, 132897, 149420, 171480, 177196, 179304, 221495, 224130, 265794, 298840, 344389, 354392, 442990, 448260, 531588, 664485, 688778, 885980, 896520, 1033167, 1063176, 1328970, 1377556, 1721945, 1771960, 2066334, 2657940, 2755112, 3443890, 4132668, 5165835, 5315880, 6887780, 8265336, 10331670, 10676059, 13775560, 20663340, 21352118, 32028177, 41326680, 42704236, 53380295, 64056354, 85408472, 106760590, 128112708, 160140885, 213521180, 256225416, 320281770, 427042360, 640563540, 1281127080]

約数ペア:
[(1, 1281127080), (2, 640563540), (3, 427042360), (4, 320281770), (5, 256225416), (6, 213521180), (8, 160140885), (10, 128112708), (12, 106760590), (15, 85408472), (20, 64056354), (24, 53380295), (30, 42704236), (31, 41326680), (40, 32028177), (60, 21352118), (62, 20663340), (93, 13775560), (120, 10676059), (124, 10331670), (155, 8265336), (186, 6887780), (241, 5315880), (248, 5165835), (310, 4132668), (372, 3443890), (465, 2755112), (482, 2657940), (620, 2066334), (723, 1771960), (744, 1721945), (930, 1377556), (964, 1328970), (1205, 1063176), (1240, 1033167), (1429, 896520), (1446, 885980), (1860, 688778), (1928, 664485), (2410, 531588), (2858, 448260), (2892, 442990), (3615, 354392), (3720, 344389), (4287, 298840), (4820, 265794), (5716, 224130), (5784, 221495), (7145, 179304), (7230, 177196), (7471, 171480), (8574, 149420), (9640, 132897), (11432, 112065), (14290, 89652), (14460, 88598), (14942, 85740), (17148, 74710), (21435, 59768), (22413, 57160), (28580, 44826), (28920, 44299), (29884, 42870), (34296, 37355)]

このpageの処理時間: 0.1291196346282959 seconds