31381532

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1181}}^1$

素因数の和:1278

約数の個数: 48

約数和(自身を含む): 68574912

約数和(自身を除く): 37193380

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 73, 91, 146, 182, 292, 364, 511, 949, 1022, 1181, 1898, 2044, 2362, 3796, 4724, 6643, 8267, 13286, 15353, 16534, 26572, 30706, 33068, 61412, 86213, 107471, 172426, 214942, 344852, 429884, 603491, 1120769, 1206982, 2241538, 2413964, 4483076, 7845383, 15690766, 31381532]

約数ペア:

[(1, 31381532), (2, 15690766), (4, 7845383), (7, 4483076), (13, 2413964), (14, 2241538), (26, 1206982), (28, 1120769), (52, 603491), (73, 429884), (91, 344852), (146, 214942), (182, 172426), (292, 107471), (364, 86213), (511, 61412), (949, 33068), (1022, 30706), (1181, 26572), (1898, 16534), (2044, 15353), (2362, 13286), (3796, 8267), (4724, 6643)]