15908828

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 31610880

約数和(自身を除く): 15702052

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 71, 124, 139, 142, 278, 284, 403, 556, 806, 923, 1612, 1807, 1846, 2201, 3614, 3692, 4309, 4402, 7228, 8618, 8804, 9869, 17236, 19738, 28613, 39476, 56017, 57226, 112034, 114452, 128297, 224068, 256594, 305939, 513188, 611878, 1223756, 3977207, 7954414, 15908828]

約数ペア:

[(1, 15908828), (2, 7954414), (4, 3977207), (13, 1223756), (26, 611878), (31, 513188), (52, 305939), (62, 256594), (71, 224068), (124, 128297), (139, 114452), (142, 112034), (278, 57226), (284, 56017), (403, 39476), (556, 28613), (806, 19738), (923, 17236), (1612, 9869), (1807, 8804), (1846, 8618), (2201, 7228), (3614, 4402), (3692, 4309)]