281277880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17449}}^1$

素因数の和:17504

約数の個数: 64

約数和(自身を含む): 703584000

約数和(自身を除く): 422306120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 17449, 34898, 69796, 87245, 139592, 174490, 226837, 348980, 453674, 540919, 697960, 907348, 1081838, 1134185, 1814696, 2163676, 2268370, 2704595, 4327352, 4536740, 5409190, 7031947, 9073480, 10818380, 14063894, 21636760, 28127788, 35159735, 56255576, 70319470, 140638940, 281277880]

約数ペア:

[(1, 281277880), (2, 140638940), (4, 70319470), (5, 56255576), (8, 35159735), (10, 28127788), (13, 21636760), (20, 14063894), (26, 10818380), (31, 9073480), (40, 7031947), (52, 5409190), (62, 4536740), (65, 4327352), (104, 2704595), (124, 2268370), (130, 2163676), (155, 1814696), (248, 1134185), (260, 1081838), (310, 907348), (403, 697960), (520, 540919), (620, 453674), (806, 348980), (1240, 226837), (1612, 174490), (2015, 139592), (3224, 87245), (4030, 69796), (8060, 34898), (16120, 17449)]