28665280

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:282

約数の個数: 112

約数和(自身を含む): 79589376

約数和(自身を除く): 50924096

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 67, 70, 80, 112, 134, 140, 160, 191, 224, 268, 280, 320, 335, 382, 448, 469, 536, 560, 670, 764, 938, 955, 1072, 1120, 1337, 1340, 1528, 1876, 1910, 2144, 2240, 2345, 2674, 2680, 3056, 3752, 3820, 4288, 4690, 5348, 5360, 6112, 6685, 7504, 7640, 9380, 10696, 10720, 12224, 12797, 13370, 15008, 15280, 18760, 21392, 21440, 25594, 26740, 30016, 30560, 37520, 42784, 51188, 53480, 61120, 63985, 75040, 85568, 89579, 102376, 106960, 127970, 150080, 179158, 204752, 213920, 255940, 358316, 409504, 427840, 447895, 511880, 716632, 819008, 895790, 1023760, 1433264, 1791580, 2047520, 2866528, 3583160, 4095040, 5733056, 7166320, 14332640, 28665280]

約数ペア:

[(1, 28665280), (2, 14332640), (4, 7166320), (5, 5733056), (7, 4095040), (8, 3583160), (10, 2866528), (14, 2047520), (16, 1791580), (20, 1433264), (28, 1023760), (32, 895790), (35, 819008), (40, 716632), (56, 511880), (64, 447895), (67, 427840), (70, 409504), (80, 358316), (112, 255940), (134, 213920), (140, 204752), (160, 179158), (191, 150080), (224, 127970), (268, 106960), (280, 102376), (320, 89579), (335, 85568), (382, 75040), (448, 63985), (469, 61120), (536, 53480), (560, 51188), (670, 42784), (764, 37520), (938, 30560), (955, 30016), (1072, 26740), (1120, 25594), (1337, 21440), (1340, 21392), (1528, 18760), (1876, 15280), (1910, 15008), (2144, 13370), (2240, 12797), (2345, 12224), (2674, 10720), (2680, 10696), (3056, 9380), (3752, 7640), (3820, 7504), (4288, 6685), (4690, 6112), (5348, 5360)]