28008280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{269}}^1$

素因数の和:436

約数の個数: 64

約数和(自身を含む): 67068000

約数和(自身を除く): 39059720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 137, 152, 190, 269, 274, 380, 538, 548, 685, 760, 1076, 1096, 1345, 1370, 2152, 2603, 2690, 2740, 5111, 5206, 5380, 5480, 10222, 10412, 10760, 13015, 20444, 20824, 25555, 26030, 36853, 40888, 51110, 52060, 73706, 102220, 104120, 147412, 184265, 204440, 294824, 368530, 700207, 737060, 1400414, 1474120, 2800828, 3501035, 5601656, 7002070, 14004140, 28008280]

約数ペア:

[(1, 28008280), (2, 14004140), (4, 7002070), (5, 5601656), (8, 3501035), (10, 2800828), (19, 1474120), (20, 1400414), (38, 737060), (40, 700207), (76, 368530), (95, 294824), (137, 204440), (152, 184265), (190, 147412), (269, 104120), (274, 102220), (380, 73706), (538, 52060), (548, 51110), (685, 40888), (760, 36853), (1076, 26030), (1096, 25555), (1345, 20824), (1370, 20444), (2152, 13015), (2603, 10760), (2690, 10412), (2740, 10222), (5111, 5480), (5206, 5380)]