31890928

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:565

約数の個数: 40

約数和(自身を含む): 63745920

約数和(自身を除く): 31854992

約数列:

[1, 2, 4, 8, 16, 67, 71, 134, 142, 268, 284, 419, 536, 568, 838, 1072, 1136, 1676, 3352, 4757, 6704, 9514, 19028, 28073, 29749, 38056, 56146, 59498, 76112, 112292, 118996, 224584, 237992, 449168, 475984, 1993183, 3986366, 7972732, 15945464, 31890928]

約数ペア:

[(1, 31890928), (2, 15945464), (4, 7972732), (8, 3986366), (16, 1993183), (67, 475984), (71, 449168), (134, 237992), (142, 224584), (268, 118996), (284, 112292), (419, 76112), (536, 59498), (568, 56146), (838, 38056), (1072, 29749), (1136, 28073), (1676, 19028), (3352, 9514), (4757, 6704)]