12931216

素因数分解:

$2^4\times {\mathrm{29}}^2\times {\mathrm{31}}^2$

素因数の和:128

約数の個数: 45

約数和(自身を含む): 26811993

約数和(自身を除く): 13880777

約数列:

[1, 2, 4, 8, 16, 29, 31, 58, 62, 116, 124, 232, 248, 464, 496, 841, 899, 961, 1682, 1798, 1922, 3364, 3596, 3844, 6728, 7192, 7688, 13456, 14384, 15376, 26071, 27869, 52142, 55738, 104284, 111476, 208568, 222952, 417136, 445904, 808201, 1616402, 3232804, 6465608, 12931216]

約数ペア:

[(1, 12931216), (2, 6465608), (4, 3232804), (8, 1616402), (16, 808201), (29, 445904), (31, 417136), (58, 222952), (62, 208568), (116, 111476), (124, 104284), (232, 55738), (248, 52142), (464, 27869), (496, 26071), (841, 15376), (899, 14384), (961, 13456), (1682, 7688), (1798, 7192), (1922, 6728), (3364, 3844)]