28397600

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{461}}^1$

素因数の和:499

約数の個数: 144

約数和(自身を含む): 86619456

約数和(自身を除く): 58221856

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 32, 35, 40, 44, 50, 55, 56, 70, 77, 80, 88, 100, 110, 112, 140, 154, 160, 175, 176, 200, 220, 224, 275, 280, 308, 350, 352, 385, 400, 440, 461, 550, 560, 616, 700, 770, 800, 880, 922, 1100, 1120, 1232, 1400, 1540, 1760, 1844, 1925, 2200, 2305, 2464, 2800, 3080, 3227, 3688, 3850, 4400, 4610, 5071, 5600, 6160, 6454, 7376, 7700, 8800, 9220, 10142, 11525, 12320, 12908, 14752, 15400, 16135, 18440, 20284, 23050, 25355, 25816, 30800, 32270, 35497, 36880, 40568, 46100, 50710, 51632, 61600, 64540, 70994, 73760, 80675, 81136, 92200, 101420, 103264, 126775, 129080, 141988, 161350, 162272, 177485, 184400, 202840, 253550, 258160, 283976, 322700, 354970, 368800, 405680, 507100, 516320, 567952, 645400, 709940, 811360, 887425, 1014200, 1135904, 1290800, 1419880, 1774850, 2028400, 2581600, 2839760, 3549700, 4056800, 5679520, 7099400, 14198800, 28397600]

約数ペア:

[(1, 28397600), (2, 14198800), (4, 7099400), (5, 5679520), (7, 4056800), (8, 3549700), (10, 2839760), (11, 2581600), (14, 2028400), (16, 1774850), (20, 1419880), (22, 1290800), (25, 1135904), (28, 1014200), (32, 887425), (35, 811360), (40, 709940), (44, 645400), (50, 567952), (55, 516320), (56, 507100), (70, 405680), (77, 368800), (80, 354970), (88, 322700), (100, 283976), (110, 258160), (112, 253550), (140, 202840), (154, 184400), (160, 177485), (175, 162272), (176, 161350), (200, 141988), (220, 129080), (224, 126775), (275, 103264), (280, 101420), (308, 92200), (350, 81136), (352, 80675), (385, 73760), (400, 70994), (440, 64540), (461, 61600), (550, 51632), (560, 50710), (616, 46100), (700, 40568), (770, 36880), (800, 35497), (880, 32270), (922, 30800), (1100, 25816), (1120, 25355), (1232, 23050), (1400, 20284), (1540, 18440), (1760, 16135), (1844, 15400), (1925, 14752), (2200, 12908), (2305, 12320), (2464, 11525), (2800, 10142), (3080, 9220), (3227, 8800), (3688, 7700), (3850, 7376), (4400, 6454), (4610, 6160), (5071, 5600)]