131778164

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{311}}^1\times {\mathrm{409}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 272213760

約数和(自身を除く): 140435596

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 311, 409, 518, 622, 818, 1036, 1244, 1636, 2177, 2863, 4354, 5726, 8708, 11452, 11507, 15133, 23014, 30266, 46028, 60532, 80549, 105931, 127199, 161098, 211862, 254398, 322196, 423724, 508796, 890393, 1780786, 3561572, 4706363, 9412726, 18825452, 32944541, 65889082, 131778164]

約数ペア:

[(1, 131778164), (2, 65889082), (4, 32944541), (7, 18825452), (14, 9412726), (28, 4706363), (37, 3561572), (74, 1780786), (148, 890393), (259, 508796), (311, 423724), (409, 322196), (518, 254398), (622, 211862), (818, 161098), (1036, 127199), (1244, 105931), (1636, 80549), (2177, 60532), (2863, 46028), (4354, 30266), (5726, 23014), (8708, 15133), (11452, 11507)]