12881492

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 25665024

約数和(自身を除く): 12783532

約数列:

[1, 2, 4, 13, 26, 31, 52, 61, 62, 122, 124, 131, 244, 262, 403, 524, 793, 806, 1586, 1612, 1703, 1891, 3172, 3406, 3782, 4061, 6812, 7564, 7991, 8122, 15982, 16244, 24583, 31964, 49166, 52793, 98332, 103883, 105586, 207766, 211172, 247721, 415532, 495442, 990884, 3220373, 6440746, 12881492]

約数ペア:

[(1, 12881492), (2, 6440746), (4, 3220373), (13, 990884), (26, 495442), (31, 415532), (52, 247721), (61, 211172), (62, 207766), (122, 105586), (124, 103883), (131, 98332), (244, 52793), (262, 49166), (403, 31964), (524, 24583), (793, 16244), (806, 15982), (1586, 8122), (1612, 7991), (1703, 7564), (1891, 6812), (3172, 4061), (3406, 3782)]