328991468

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1607}}^1$

素因数の和:1782

約数の個数: 48

約数和(自身を含む): 645464064

約数和(自身を除く): 316472596

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 127, 254, 403, 508, 806, 1607, 1612, 1651, 3214, 3302, 3937, 6428, 6604, 7874, 15748, 20891, 41782, 49817, 51181, 83564, 99634, 102362, 199268, 204089, 204724, 408178, 647621, 816356, 1295242, 2590484, 2653157, 5306314, 6326759, 10612628, 12653518, 25307036, 82247867, 164495734, 328991468]

約数ペア:

[(1, 328991468), (2, 164495734), (4, 82247867), (13, 25307036), (26, 12653518), (31, 10612628), (52, 6326759), (62, 5306314), (124, 2653157), (127, 2590484), (254, 1295242), (403, 816356), (508, 647621), (806, 408178), (1607, 204724), (1612, 204089), (1651, 199268), (3214, 102362), (3302, 99634), (3937, 83564), (6428, 51181), (6604, 49817), (7874, 41782), (15748, 20891)]