161007275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1553}}^1$

素因数の和:1616

約数の個数: 48

約数和(自身を含む): 242796960

約数和(自身を除く): 81789685

約数列:

[1, 5, 11, 13, 25, 29, 55, 65, 143, 145, 275, 319, 325, 377, 715, 725, 1553, 1595, 1885, 3575, 4147, 7765, 7975, 9425, 17083, 20189, 20735, 38825, 45037, 85415, 100945, 103675, 222079, 225185, 427075, 495407, 504725, 585481, 1110395, 1125925, 2477035, 2927405, 5551975, 6440291, 12385175, 14637025, 32201455, 161007275]

約数ペア:

[(1, 161007275), (5, 32201455), (11, 14637025), (13, 12385175), (25, 6440291), (29, 5551975), (55, 2927405), (65, 2477035), (143, 1125925), (145, 1110395), (275, 585481), (319, 504725), (325, 495407), (377, 427075), (715, 225185), (725, 222079), (1553, 103675), (1595, 100945), (1885, 85415), (3575, 45037), (4147, 38825), (7765, 20735), (7975, 20189), (9425, 17083)]