25721744

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{401}}^1$

素因数の和:639

約数の個数: 40

約数和(自身を含む): 52838880

約数和(自身を除く): 27117136

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 211, 304, 401, 422, 802, 844, 1604, 1688, 3208, 3376, 4009, 6416, 7619, 8018, 15238, 16036, 30476, 32072, 60952, 64144, 84611, 121904, 169222, 338444, 676888, 1353776, 1607609, 3215218, 6430436, 12860872, 25721744]

約数ペア:

[(1, 25721744), (2, 12860872), (4, 6430436), (8, 3215218), (16, 1607609), (19, 1353776), (38, 676888), (76, 338444), (152, 169222), (211, 121904), (304, 84611), (401, 64144), (422, 60952), (802, 32072), (844, 30476), (1604, 16036), (1688, 15238), (3208, 8018), (3376, 7619), (4009, 6416)]